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Mineral
Identification by Picture and Attribute
Explorers! Before you begin your journey, you need to recognize these geological specimens. |
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Begin by selecting one of the specimens pictured. |
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Inosilicates, Neosilicates, Sorosilicates |
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Oxides, Hydroxides, Carbonates |
Silicates |
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Name: Pyroxene (Augite) |
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Class: SILICATES Group: Inosilicates (chain silicates) |
Color
green - black |
Chemical Formula: (Ca,Na)(Mg,Fe,Al)(Al,Si)2O6 |
Streak
pale gray |
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Luster
glassy |
Hardness
5 - 6 |
Cleavage
2 directions at almost 90° |
Density
3.2 - 3.4 |
Crystal Form
Monoclinic |
Common Uses / Other Facts: |
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Sulfides and Sulfates |
Halides |
Organic |
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