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Garnet

Garnet is a mineral from the Nesosilicates group (Silicate group),it's chemical formula is X₃Y₂(SiO₄)₃ where x stands for Mg,Fe²+,Mn and Ca.Y stands for Cr,Fe

Some examples of garnet are:
1.Grossular:Ca₃Al₂Si₃O₁₂
2.Pyrope:Mg₃Al₂Si₃O₁₂
3.Uvarovite:Ca₃Cr₂Si₃O₁₂
4.Almandine:Fe₂+³Al₂Si₃O₁₂
5.Andradite:Ca₃Fe₃+²Si₃O₁₂
6.Spessartine:Mn₃Al₂Si₃O₁₂

Garnet has the following properties:

1.Hardness:6.5-7.5 on the Moh scale

2.Color:Yellow,orange,red,blue,green,pink,black,brown,purple and colorless.

3.Specific gravity:3.1-4.3

4.Cleavage:None.

5.Habit:Dodecahedral,Massive,Cubic.

6.Fracture:Conchoidal to uneven.

7.Luster:Vitreous (Glassy) to Resinous.

8.Streak:Colorless.

Some other properties that Garnet shows are:

A.Crystal system:Isometric.
B.Tenacity:Brittle.
C.Color changing:Some garnets change their colors depending on daylight.