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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: Galena |
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Class: SULFIDES Group: |
Color
dark gray |
Chemical Formula: PbS |
Streak
black |
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Luster
metallic |
Hardness
2.5 - 2.75 |
Density
7.4 - 7.6 |
Cleavage
3 directions at 90o |
Crystal Form
Cubic |
Common Uses / Other Facts: Major ore of lead and silver |
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Sulfides and Sulfates |
Halides |
Organic |
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