tag:blogger.com,1999:blog-70844540934590290392024-03-05T00:54:05.672-08:00Rocks and MineralsIsmailhttp://www.blogger.com/profile/14716983807010422006noreply@blogger.comBlogger7125tag:blogger.com,1999:blog-7084454093459029039.post-63973654712461922972011-05-30T04:06:00.000-07:002011-05-30T04:06:20.451-07:00Pictures of Malachite | Malachite pictures<div dir="ltr" style="text-align: left;" trbidi="on">I went on a small image searching adventure and I found those malachite pictures,anyway I hope you'll enjoy the pictures!<br />
<div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjidXOjuhoGt8aanjZq2uXCnYGjs1qc400u0dXoYDtOjvJKyvvKJ2-oo8zIH2NHufF0mYJi-WCIr2EsfVjvy4ZU_SmgGrDKdrv186IIsAMhachgIWHG8B7hoWuRH1M8Pb7P5fBQo3zSYpk/s1600/malachite+8.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"></a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg-U4pqkbKI4JgOcS7t1PyzbnSUMyriu2oW8sWtPTOd-mTsC-6vRVsX3KXt326zghEG8QM0PZqxR2BgyiMsAizK_rigE2shiHGhphvuDGxGhu4PIX4UZR_S-2WZWb62Gmgkrtw-iedqaO4/s1600/malachite+18.jpg" imageanchor="1" style="clear: right; float: right; margin-bottom: 1em; margin-left: 1em;"></a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiAAy7Ry7mnGIuWrR0N0WZnk7h2Tbp0PhhCtNFakiDTyXwxDGkR5AGrPkI8hsnDE1RFSFoUQ05nGkZJxJA3AYXyi7g4wLCnL1E1VZ4LrbnjBi59z_bfiKgMrVn6TKmg7rPWJQw6h5JIdFM/s1600/malachite+15.jpg" imageanchor="1" style="clear: right; float: right; margin-bottom: 1em; margin-left: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiAAy7Ry7mnGIuWrR0N0WZnk7h2Tbp0PhhCtNFakiDTyXwxDGkR5AGrPkI8hsnDE1RFSFoUQ05nGkZJxJA3AYXyi7g4wLCnL1E1VZ4LrbnjBi59z_bfiKgMrVn6TKmg7rPWJQw6h5JIdFM/s1600/malachite+15.jpg" /></a><img border="0" height="460" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg-U4pqkbKI4JgOcS7t1PyzbnSUMyriu2oW8sWtPTOd-mTsC-6vRVsX3KXt326zghEG8QM0PZqxR2BgyiMsAizK_rigE2shiHGhphvuDGxGhu4PIX4UZR_S-2WZWb62Gmgkrtw-iedqaO4/s640/malachite+18.jpg" width="640" /><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjidXOjuhoGt8aanjZq2uXCnYGjs1qc400u0dXoYDtOjvJKyvvKJ2-oo8zIH2NHufF0mYJi-WCIr2EsfVjvy4ZU_SmgGrDKdrv186IIsAMhachgIWHG8B7hoWuRH1M8Pb7P5fBQo3zSYpk/s1600/malachite+8.jpg" /></div><br />
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<div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhyHHfdDSaicM8eAPWu7CA-s6x5O5MLp2NedecgQkbMzIe1tehuou-5L3JvVZA8pHSajqi3jn4jS8TRDn3FKOWQI7OW1iu1gIzuWf8tAlJBiX9Kv7YjdcrA4FFS5Is75_V0MryouMk7suM/s1600/malachite+12.jpg" imageanchor="1" style="clear: right; float: right; margin-bottom: 1em; margin-left: 1em;"></a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjbyzWTJljjcI-_Bvmdbe90mthPKmK1kaP7C9jnP2j_quICI2Ujo9x3g6hD34_2X3pt_qasUuQAxuYk3_Ckjj8AmfViROBqt9Nx_fNIC9XhQIUcNnR4f42QFmwR8PyGlWNW6tDIE_Hfvvk/s1600/malachite+16.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjbyzWTJljjcI-_Bvmdbe90mthPKmK1kaP7C9jnP2j_quICI2Ujo9x3g6hD34_2X3pt_qasUuQAxuYk3_Ckjj8AmfViROBqt9Nx_fNIC9XhQIUcNnR4f42QFmwR8PyGlWNW6tDIE_Hfvvk/s1600/malachite+16.jpg" /></a><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhyHHfdDSaicM8eAPWu7CA-s6x5O5MLp2NedecgQkbMzIe1tehuou-5L3JvVZA8pHSajqi3jn4jS8TRDn3FKOWQI7OW1iu1gIzuWf8tAlJBiX9Kv7YjdcrA4FFS5Is75_V0MryouMk7suM/s1600/malachite+12.jpg" /></div><br />
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</div>Ismailhttp://www.blogger.com/profile/14716983807010422006noreply@blogger.comtag:blogger.com,1999:blog-7084454093459029039.post-44734803517915178912010-08-08T20:08:00.000-07:002011-04-23T10:20:55.829-07:00Minerals and rocks | Buy minerals<div dir="ltr" style="text-align: left;" trbidi="on"><h1></h1><h1>Minerals and rocks</h1><br />
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjg6rSqqYLd8xx2Mk7DRTj_PXPoJNQFEt4xOJrHKUbHV0DdDbSTLJ781EhXAmoPLnhsFQJxYecywfQ_g3AVChy6C-UlGSUMO3S6nG2OWG0YcVgikDJfTn7ezT5Myr-NufwBzgGmr5gZBjA/s1600/1.jpg" onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}"><img alt="" border="0" id="BLOGGER_PHOTO_ID_5491483070794631682" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjg6rSqqYLd8xx2Mk7DRTj_PXPoJNQFEt4xOJrHKUbHV0DdDbSTLJ781EhXAmoPLnhsFQJxYecywfQ_g3AVChy6C-UlGSUMO3S6nG2OWG0YcVgikDJfTn7ezT5Myr-NufwBzgGmr5gZBjA/s320/1.jpg" style="cursor: pointer; display: block; height: 320px; margin: 0px auto 10px; text-align: center; width: 294px;" /></a><br />
Identifying rocks and minerals is not an easy job..To be able to identify rocks and minerals you must first know the basics.<br />
<h2>Identifying rocks and minerals</h2>A rock is a mixture or an accumulation of different minerals,For example,Granite is a rock while it can have the minerals Quartz,Feldspar,Mica and so on.<br />
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Rocks are divided into mainly 3 categories:<br />
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<span style="font-weight: bold;">•Igneous:</span>It is when magma or lava cools and crystallizes.They are divided into two groups:<br />
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1.Intrusive:It is when the magma cools slowly under the earth and forms large crystals.<br />
2.Extrusive:It is when the lava cools rapidly on the surface of the earth and forms small or no crystals.<br />
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<span style="font-weight: bold;">•Sedimentary:</span>It is when sand and other minerals or even organic matter deposits and compacts together to form a rock.<br />
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<span style="font-weight: bold;">•Metamorphic:</span>It is when other rocks even past metamorphic rocks melt and under pressure and heat recrystallizes and form another mineral.<br />
<h1></h1>The definition of a mineral is:<br />
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•A naturally occurring solid chemical substance that is created through geological processes and has distinct physical properties,extremely arranged atomic structure, and a unique chemical composition.<br />
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A mineral can be classified through mainly 7 ways which are:<br />
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<span style="font-size: 130%; font-weight: bold;">•Hardness:</span>It is how hard the mineral is physically and what can it be scratched by on the Moh hardness scale from 1 to 10,for example Fluorite,CaF<sub>2</sub> has a hardness of 4 so it can be scratched by a knife blade.<br />
1.Talc Mg<sub>3</sub>Si<sub>4</sub>O<sub>10</sub>(OH)<sub>2</sub> (Scratched by fingernail)<br />
2.Gypsum CaSO<sub>4</sub>·2H<sub>2</sub>O (Scratched by fingernail)<br />
3.Calcite CaCO<sub>3</sub> (Scratched by copper penny)<br />
4. Fluorite CaF<sub>2</sub> (Scratched by knife blade)<br />
5.Apatite Ca<sub>5</sub>(PO<sub>4</sub>)<sub>3</sub>(OH,Cl,F) (Scratched by knife blade)<br />
6.Orthoclase KAlSi<sub>3</sub>O<sub>8</sub> (Scratched by steel file)<br />
7.Quartz SiO<sub>2</sub> (Scratched by hardened steel)<br />
8.Topaz Al<sub>2</sub>SiO<sub>4</sub>(OH,F)<sub>2</sub> (Scratches anything lower)<br />
9.Corundum Al<sub>2</sub>O<sub>3</sub> (Scratches anything lower)<br />
10.Diamond C (Scratches everything else)<br />
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<span style="font-size: 130%; font-weight: bold;">•Streak:</span>It's the color of the powder when the mineral is rubbed on an unglazed porcelain plate,It's not always the same as the minerals color,For example quartz can be many colors such as brown,violet,gray,yellow etc. But it's streak color will always be white.<br />
<br />
<span style="font-size: 130%; font-weight: bold;">•Luster:</span>To put it simply,It's how a mineral reflects light.They are divided into 3 groups:<br />
1.Metallic:Reflects light very well just like a polished metal.<br />
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2.Sub-Metallic:Reflects light like a dull or weathered metal.<br />
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3.Non-metallic:Divided into other sub-categories which are:<br />
A.Adamantine:Having the reflection of a diamond.<br />
B.Glassy:Having the reflection of glass.<br />
C.Resinous:Not very glassy,like Sphalerite or Amber.<br />
D.Greasy:As if it was coated with oil.<br />
E.Pearly:Having the look or reflection of a pearl.<br />
F.Silky:Looks like silk,Has fiber or thread like structure on its surface.<br />
G.Dull:Having little or no reflection.<br />
H.Earthy:Like clay or soil.<br />
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<span style="font-size: 130%; font-weight: bold;">•Color:</span>It is not a very reliable way of identifying minerals unless you're an expert and already know the colors of many minerals,Since the color of the mineral can change even with a slight impurity.For example Quartz, it's true color is white or clear,but it can have other colors such as rose quartz(Pink),due to impurities.<br />
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<span style="font-size: 130%; font-weight: bold;">•Specific gravity or density:</span>It's how heavy the mineral is per given volume,D=M/V. An easier way to find the specific gravity or density is by carrying the mineral in your hand and then feeling if it is too heavy for it's size,too light,or perfect for it's size.<br />
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<span style="font-size: 130%; font-weight: bold;">•Cleavage And Fracture:</span>Cleavage is the tendency of a mineral to break into crystal pieces or smooth planes,If it doesn't then the mineral has no cleavage.<br />
Cleavages can be:<br />
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1.Perfect<br />
2.Good<br />
3.Poor<br />
4.None.<br />
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Perfect cleavage means that the mineral is very smooth.<br />
Good cleavage means its smooth but has some jagged or rough surfaces.<br />
Poor means it is very hard to notice the smoothness and is jagged and rough.<br />
None means the mineral is not smooth and is entirely jagged or rough.<br />
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Cleavages can be in 4 directions:<br />
<br />
1.One direction<br />
2.Two directions<br />
3.Three directions<br />
4.All directions(4 or more directions)<br />
<br />
Some of the patterns of cleavage in minerals are:<br />
<br />
1.Cubic:3 Cleavages 6 faces at right angles,Small cubes break off actual cube.<br />
2.Prismatic:2 Cleavages 4 faces of several probable angles third side fractures irregularly,Small vertical prism like shapes break off.<br />
3.Basal:1 Cleavage 2 faces,Small flat like pieces break off.<br />
4.Rhombohedral:3 Cleavages 6 faces not at right angles,Small rhombus like pieces break off.<br />
5.Octahedral:4 Cleavages 8 faces,Flat triangular pieces break off.<br />
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Fracture:A fracture is the definite mark left on the mineral after it was broken or chipped off.<br />
Some types of fractures are:<br />
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1.Uneven:Irregular or rough surface.<br />
2.Smooth:Smooth surface.<br />
3.Crumbly:Crumbles when broken.<br />
4.Jagged:Irregular sharp edges.<br />
5.Conchoidal:Smooth curved surface like the inside of a shell.<br />
6.Fibrous:Fibers or Splinters.<br />
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<span style="font-size: 130%; font-weight: bold;">•Mineral Habit:</span>It's the common appearance that the mineral crystal usually has:<br />
Some mineral habits are:<br />
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1.Tabular:It looks like a little amount of paper put together (thin) or a large amount of paper put together (thick).<br />
2.Acicular:Looks like needles.<br />
3.Equant:Sphere or cube like.<br />
4.Prismatic:Prism like.<br />
5.Capillary:Hair like.<br />
6.Bladed:Like thin flat blades.<br />
7.Divergent:Fan like or like rays going outward.<br />
8.Dendritic:Cluster of fern like leaves.<br />
9.Druzy:crystals on the surface of a mineral.<br />
10.Reticulated:Interconnected lattices.<br />
11.Fibrous:Fiber like.<br />
12.Globular:Packed spheres going outward.<br />
13.Columnar:Big column like cluster.<br />
14.Stellate:Thin crystals going outward in all directions.<br />
15.Mamillary:Bowl or Human breast like.<br />
16.Botryoidal:Like a bunch of grapes.<br />
17.Reniform:Packed clusters together going outward.<br />
18.Plumose:Like dendritic but much finer.<br />
19.Foilated:Like overlapping leaves.<br />
20.Micaceous:Like overlapping leaves but breaks into thin sheets.<br />
21.Lamellar:Like flat thick overlapping leaves.<br />
22.Banded:Different bonding of layer of colors.<br />
23.Massive:No crystal structure.<br />
24.Concentric:Semi circular like patterns from the center to the edge.<br />
25.Pisolitic:Small round masses.<br />
26.Oolitic:Very small round sphere masses.<br />
27.Geode:A rock with a hollow inside it that is in the shape of mineral crystals.<br />
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Some other mineral properties are:<br />
•Magnetism:If the mineral displays magnetic properties.<br />
•Acid test:If the mineral reacts with dilute acid.<br />
•Taste:Some evaporite minerals have distinct tastes.<a href="http://scripts.affiliatefuture.com/AFClick.asp?affiliateID=232422&merchantID=2575&programmeID=6730&mediaID=41689&tracking=&url="><br />
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<h1></h1></div>Ismailhttp://www.blogger.com/profile/14716983807010422006noreply@blogger.comtag:blogger.com,1999:blog-7084454093459029039.post-29164894827062017272010-08-08T07:44:00.000-07:002011-04-23T10:19:39.381-07:00Malachite | Buy Malachite<div dir="ltr" style="text-align: left;" trbidi="on"><h1>Malachite</h1><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh9JjZ5-0Q6TB-Q7rf0Y_iK7r6FbUpvocgOSMyhCbkbEY4TxeuEa6zIKcrj5M3bd5Zhx1mWQKmBYR8MiaAXJpT0a_RkWfXpu1RmKRb3WIEUbYPMAGS9Q5RozL-HcX9Ywe2_gdjdNjpvc9I/s1600/7+Malachite.jpg" onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}"><img alt="" border="0" id="BLOGGER_PHOTO_ID_5503070290532573730" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh9JjZ5-0Q6TB-Q7rf0Y_iK7r6FbUpvocgOSMyhCbkbEY4TxeuEa6zIKcrj5M3bd5Zhx1mWQKmBYR8MiaAXJpT0a_RkWfXpu1RmKRb3WIEUbYPMAGS9Q5RozL-HcX9Ywe2_gdjdNjpvc9I/s320/7+Malachite.jpg" style="cursor: pointer; display: block; height: 262px; margin: 0px auto 10px; text-align: center; width: 320px;" /></a>Malachite is a mineral from the carbonate group,it's chemical formula is Cu<sub>2</sub>CO<sub>3</sub>(OH)<sub>2</sub>.It is found in oxidation zones of copper deposits.It is found worldwide and is used as jewelery mainly and smelting into copper.<br />
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<span style="font-weight: bold;">1.Hardness:</span>3.5-4 on the Moh scale.<br />
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<span style="font-weight: bold;">2.Color:</span>Green to dark green<br />
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<span style="font-weight: bold;">3.Specific gravity:</span>3.6-4<br />
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<span style="font-weight: bold;">4.Cleavage:</span>{201} Perfect,{010} Fair.<br />
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<span style="font-weight: bold;">5.Habit:</span>Stalctitic,massive,botryoidal.The habit of the crystals are prismatic,acicular and tabular.<br />
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<span style="font-weight: bold;">6.Fracture:</span>Subconchoidal to uneven.<br />
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<span style="font-weight: bold;">7.Luster:</span>Vitreous - Silky.<br />
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<span style="font-weight: bold;">8.Streak:</span>Light green<br />
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Some other properties that malachite shows are:<br />
<br />
<span style="font-weight: bold;">A.</span>Diaphaneity:Translucent to opaque.<br />
<span style="font-weight: bold;">B.</span>Crystal system:Monoclinic-prismatic.<br />
<span style="font-weight: bold;">C.</span>Twinning:Penetration twinning and Polysynthetic twinning.<br />
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</a></div>Ismailhttp://www.blogger.com/profile/14716983807010422006noreply@blogger.comtag:blogger.com,1999:blog-7084454093459029039.post-15745754412975458082010-07-18T00:34:00.000-07:002011-04-23T10:19:18.374-07:00Garnet | Buy Garnet<div dir="ltr" style="text-align: left;" trbidi="on"><h1>Garnet</h1><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgTyP2cxdS1s-Si8oegI5f-3x7ToNN2deAVZfpAtnPb-fV1hb6_enPj04eL_SUYP_lL8h0VnqSVtf6JhVeTLX7gUWgqCn6jEN7BOonKWUM6U2lRMcXA7VI02uM4AUVpn1KKnork4T_nhFE/s1600/6+Garnet.jpg" onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}"><img alt="" border="0" id="BLOGGER_PHOTO_ID_5502952044611787698" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgTyP2cxdS1s-Si8oegI5f-3x7ToNN2deAVZfpAtnPb-fV1hb6_enPj04eL_SUYP_lL8h0VnqSVtf6JhVeTLX7gUWgqCn6jEN7BOonKWUM6U2lRMcXA7VI02uM4AUVpn1KKnork4T_nhFE/s320/6+Garnet.jpg" style="cursor: pointer; display: block; height: 240px; margin: 0px auto 10px; text-align: center; width: 320px;" /></a>Garnet is a mineral from the Nesosilicates group (Silicate group),it's chemical formula is X<sub>3</sub>Y<sub>2</sub>(SiO<sub>4</sub>)<sub>3</sub> where x stands for Mg,Fe<sup>2</sup>+,Mn and Ca.Y stands for Cr,Fe<s+ a="" almost="" an="" and="" as="" bit="" found="" gemstone="" igneous="" in="" is="" it="" jewelery="" little="" metamorphic="" mostly="" s="" sometimes="" used="" worldwide=""></s+><br />
<s+ a="" almost="" an="" and="" as="" bit="" found="" gemstone="" igneous="" in="" is="" it="" jewelery="" little="" metamorphic="" mostly="" s="" sometimes="" used="" worldwide=""><br />
Some examples of garnet are:<br />
1.Grossular:Ca<sub>3</sub>Al<sub>2</sub>Si<sub>3</sub>O<sub>12</sub><br />
2.Pyrope:Mg<sub>3</sub>Al<sub>2</sub>Si<sub>3</sub>O<sub>12</sub><br />
3.Uvarovite:Ca<sub>3</sub>Cr<sub>2</sub>Si<sub>3</sub>O<sub>12</sub><br />
4.Almandine:Fe<sub>2</sub>+<sup>3</sup>Al<sub>2</sub>Si<sub>3</sub>O<sub>12</sub><br />
5.Andradite:Ca<sub>3</sub>Fe<sub>3</sub>+<sup>2</sup>Si<sub>3</sub>O<sub>12</sub><br />
6.Spessartine:Mn<sub>3</sub>Al<sub>2</sub>Si<sub>3</sub>O<sub>12</sub><br />
<br />
Garnet has the following properties:<br />
<br />
<span style="font-weight: bold;">1.Hardness:</span>6.5-7.5 on the Moh scale<br />
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<span style="font-weight: bold;">2.Color:</span>Yellow,orange,red,blue,green,pink,black,brown,purple and colorless.<br />
<br />
<span style="font-weight: bold;">3.Specific gravity:</span>3.1-4.3<br />
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<span style="font-weight: bold;">4.Cleavage:</span>None.<br />
<br />
<span style="font-weight: bold;">5.Habit:</span>Dodecahedral,Massive,Cubic.<br />
<br />
<span style="font-weight: bold;">6.Fracture:</span>Conchoidal to uneven.<br />
<br />
<span style="font-weight: bold;">7.Luster:</span>Vitreous (Glassy) to Resinous.<br />
<br />
<span style="font-weight: bold;">8.Streak:</span>Colorless.<br />
<br />
Some other properties that Garnet shows are:<br />
<br />
A.Crystal system:Isometric.<br />
B.Tenacity:Brittle.<br />
C.Color changing:Some garnets change their colors depending on daylight.<br />
</s+></div>Ismailhttp://www.blogger.com/profile/14716983807010422006noreply@blogger.comtag:blogger.com,1999:blog-7084454093459029039.post-19078936335537672692010-07-15T04:48:00.000-07:002011-04-23T10:18:51.838-07:00Pyrite | Buy pyrite<div dir="ltr" style="text-align: left;" trbidi="on"><h1>Pyrite </h1><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh2a5mBQcPxr_kTu_IO3J0E9MnYFxbQ9BA1rwv3KQcqQ5keXFyag-IDmSQpsNpTHBxWDlH0HWAYaNnTqv5B7bnxom3uxhHvYC9c1qW3pkjZ1V_BuBnFsMwDMhr1BBmd41pxo9kdTXmeeT0/s1600/5+pyrite33110.JPG" onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}"><img alt="" border="0" id="BLOGGER_PHOTO_ID_5494154613119535986" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh2a5mBQcPxr_kTu_IO3J0E9MnYFxbQ9BA1rwv3KQcqQ5keXFyag-IDmSQpsNpTHBxWDlH0HWAYaNnTqv5B7bnxom3uxhHvYC9c1qW3pkjZ1V_BuBnFsMwDMhr1BBmd41pxo9kdTXmeeT0/s320/5+pyrite33110.JPG" style="cursor: pointer; display: block; height: 320px; margin: 0px auto 10px; text-align: center; width: 302px;" /></a>Pyrite FeS<sub>2</sub> is a mineral from the sulfide group,It's a common mineral found worldwide,It occurs in Sedimentary,Metamorphic,Magmatic and Hydrothermal deposits.It is used as a minor source of Sulfur or Iron,also in Marcasite jewelery.<br />
<br />
<br />
Pyrite has the following properties:<a href="http://banners.affiliatefuture.com/2575/41689.jpg" onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}"><br />
</a><br />
<span style="font-weight: bold;">1.Hardness:</span>6-6.5 on the Moh Scale<br />
<br />
<span style="font-weight: bold;">2.Color:</span>Brassy Yellow<br />
<br />
<span style="font-weight: bold;">3.Specific Gravity:</span>4.9-5.1<br />
<br />
<span style="font-weight: bold;">4.Cleavage:</span>None or indistinct.<br />
<br />
<span style="font-weight: bold;">5.Habit:</span>Many crystal habits such as (Cubic,massive,octahedral,pyritohedron,intergrown,globular,radiated,stalctitic,granular).<br />
<br />
<span style="font-weight: bold;">6.Fracture:</span>Uneven,Sometimes conchoidal.<br />
<br />
<span style="font-weight: bold;">7.Luster:</span>Metallic.<br />
<br />
<span style="font-weight: bold;">8.Streak:</span>Greenish-black<br />
<br />
Some other properties that Pyrite shows are:<br />
<br />
<span style="font-weight: bold;">A.</span>Solubility:Insoluble in water.<br />
<span style="font-weight: bold;">B.</span>Diaphaneity:Opaque.<br />
<span style="font-weight: bold;">C.</span>Tenacity:Brittle.<br />
<span style="font-weight: bold;">D.</span>Crystal system:Isometric.<br />
<span style="font-weight: bold;">E.</span>Twinning:Contact and Penetration twinning.<br />
<span style="font-weight: bold;">F.</span>Paramagnetism(Occurs only when an external magnetic field is applied).<br />
</div>Ismailhttp://www.blogger.com/profile/14716983807010422006noreply@blogger.comtag:blogger.com,1999:blog-7084454093459029039.post-9194622487011674632010-07-11T04:46:00.000-07:002011-04-23T10:18:08.562-07:00Calcite | Buy Calcite<div dir="ltr" style="text-align: left;" trbidi="on"><h1>Calcite <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhXawFt3OpN2oLbyZUCqKUeN6eamd_iXivsWZQcbb0EVySqZlXXqk6Dp8x2WED4QRWaSVO9on5RxnwkP2ec-R14qJ5ixb3ka3Rc1LRk8PWQ6kpIQhZjjelmqW0cd4hvO7Jrx_JzQeOuGfw/s1600/3+Calcite-orange.jpg" onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}"><img alt="" border="0" id="BLOGGER_PHOTO_ID_5493779254094229586" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhXawFt3OpN2oLbyZUCqKUeN6eamd_iXivsWZQcbb0EVySqZlXXqk6Dp8x2WED4QRWaSVO9on5RxnwkP2ec-R14qJ5ixb3ka3Rc1LRk8PWQ6kpIQhZjjelmqW0cd4hvO7Jrx_JzQeOuGfw/s320/3+Calcite-orange.jpg" style="cursor: pointer; display: block; height: 304px; margin: 0px auto 10px; text-align: center; width: 320px;" /></a></h1><br />
Calcite (CaCO<sub>3</sub>) is a mineral from the carbonate group.It is a very common mineral which is found worldwide,it occurs in Igneous,Sedimentary,Metamorphic Rocks.<br />
<h1></h1>Calcite has the following properties:<br />
<br />
<span style="font-weight: bold;">1.Hardness:</span>3 On the Moh Scale.<br />
<br />
<span style="font-weight: bold;">2.Color:</span>White or colorless but can have a wide range of colors<br />
(Violet,yellow,blue,green,red,grey,brown,black,orange etc.) Due to impurities.<br />
<br />
<span style="font-weight: bold;">3.Specific gravity:</span>2.71.<br />
<br />
<span style="font-weight: bold;">4.Cleavage:</span>Perfect {1011} on all three directions,Rhom bohedral.<br />
<br />
<span style="font-weight: bold;">5.Habit:</span>Many crystal habits some of which are (Massive,concretionary,granular,rhombohedral,crystalline,talactitic)<br />
<br />
<span style="font-weight: bold;">6.Fracture:</span>Conchoidal.<br />
<br />
<span style="font-weight: bold;">7.Luster:</span>Vitreous (Glassy) or Pearly.<br />
<br />
<span style="font-weight: bold;">8.Streak:</span>White.<br />
<br />
Some other properties that Calcite shows are:<br />
<br />
<span style="font-weight: bold;">A.</span>Solubility:Dissolves and reacts with acid.<br />
<span style="font-weight: bold;">B.</span>Diaphaneity:Transparent,Translucent,Opaque.<br />
<span style="font-weight: bold;">C.</span>Double Refraction.<br />
<span style="font-weight: bold;">D.</span>Tenacity:Brittle.<br />
<span style="font-weight: bold;">E.</span>Optical properties:Uniaxial.<br />
<span style="font-weight: bold;">F.</span>Crystal system:Trigonal.<br />
<span style="font-weight: bold;">G.</span>Twinning:Twin Twinning<a href="http://scripts.affiliatefuture.com/AFClick.asp?affiliateID=232422&merchantID=2575&programmeID=6730&mediaID=41689&tracking=&url="><br />
</a><br />
<h1></h1></div>Ismailhttp://www.blogger.com/profile/14716983807010422006noreply@blogger.comtag:blogger.com,1999:blog-7084454093459029039.post-37090823926537552572010-07-09T00:25:00.000-07:002011-04-23T10:17:49.598-07:00Mineral Classes | Types of Rocks and Minerals<div dir="ltr" style="text-align: left;" trbidi="on"><h1>Mineral Classes<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiNattf13HuMoMSNL88EqiSBQJQksFCSUk1XVUajAE8M3xWi7qCpjtcHQl5wM7T_G8OCDS9kT-r1Fkm4dSE-oVZHIoa1Z7wwyIbPLhOEOBCfOALS4hCzhsYaTIOkFAJkIljSfsQ22CnJBo/s1600/2+Orange+Calcite.jpg" onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}"><img alt="" border="0" id="BLOGGER_PHOTO_ID_5491866597522229586" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiNattf13HuMoMSNL88EqiSBQJQksFCSUk1XVUajAE8M3xWi7qCpjtcHQl5wM7T_G8OCDS9kT-r1Fkm4dSE-oVZHIoa1Z7wwyIbPLhOEOBCfOALS4hCzhsYaTIOkFAJkIljSfsQ22CnJBo/s320/2+Orange+Calcite.jpg" style="cursor: pointer; display: block; height: 231px; margin: 0px auto 10px; text-align: center; width: 320px;" /></a></h1><br />
Minerals are divided into classes depending upon their chemical composition.<br />
<br />
<span style="font-size: 130%; font-weight: bold;">Classes:</span><br />
<br />
<span style="font-weight: bold;">1.Element class:</span>It is the class where minerals are their natural elements such as Gold,Silver,Copper,Antimony,Sulfur,Graphite,Bismuth.<br />
<br />
<span style="font-weight: bold;">2.Silicate class:</span>They are the hugest mineral group and consist mainly of Silicon and Oxygen with some other ions such as Iron,Aluminum and Calcium are a few examples.Some silicate examples are Quartz,Feldspars and Garnets.<br />
<h1></h1><span style="font-weight: bold;">3.Sulfide class:</span>It is the class where minerals contain sulfur and some metal in their composition,For example Pyrite which contains Sulfur and Iron (Iron Sulfide).<br />
<br />
<span style="font-weight: bold;">4.Oxide class:</span>It is the class where the minerals consists of Oxygen and some metals,For example Hematite (Iron Oxide).<br />
<br />
<span style="font-weight: bold;">5.Halides class:</span>It is the class where minerals consist of Metal and the Halogen elements,For example Fluorite (Calcium Fluoride).<br />
<br />
<span style="font-weight: bold;">6.Carbonate class:</span>It is the class where minerals have (CO<sub>3</sub>)<sup>2</sup>− in their chemical composition,For example Calcite (Calcium Carbonate).<br />
<br />
<span style="font-weight: bold;">7.Sulfate class:</span>It is the class where minerals have SO<sub>4</sub> <sup>2</sup>- in their chemical composition,for example Gypsum (Hydrated Calcium Sulfate).<br />
<br />
<span style="font-weight: bold;">8.Phosphate class:</span>It is the class where minerals have Z O<sub>4</sub> In their chemical composition where Z can be Arsenic,Antimony,Vanadium and Phosphorus.An example of a Phosphate is Apatite Ca<sub>5</sub>(PO<sub>4</sub>)<sub>3</sub>(OH,F,Cl).<br />
<br />
<span style="font-weight: bold;">9.Organic class:</span>It is minerals formed with some geological processes and contain some biological substances,Such as the Resin found In Amber.<a href="http://scripts.affiliatefuture.com/AFClick.asp?affiliateID=232422&merchantID=2575&programmeID=6730&mediaID=41689&tracking=&url=" mediaid="41699&tracking=" merchantid="2575&programmeID=" url="'"><br />
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<h1></h1></div>Ismailhttp://www.blogger.com/profile/14716983807010422006noreply@blogger.com