Minerals
Minerals are naturally occurring inorganic substances with a specific chemical composition and crystalline structure. They are the building blocks of rocks and are classified by their chemical composition and crystal system.
18 specimens starting with "Q" (of 5,084 total)
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Qandilite
Hardness: 7
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Qaqarssukite-(ce)
Hardness: 3 - 4
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Qatranaite
Hardness: 3.5
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Qilianshanite
Hardness: 2
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Qingheiite
Hardness: 5.5
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Qingsongite
Hardness: 9 - 10
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Qitianlingite
Hardness: 5.5
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Quadratite
Hardness: 3
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Quadridavyne
Hardness: 5
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Quadruphite
Quartz
Hardness: 7
Queitite
Hardness: 4
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Quenselite
Hardness: 2.5
Quenstedtite
Hardness: 2.5
Quetzalcoatlite
Hardness: 3
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Quijarroite
Quintinite
Hardness: 2
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Qusongite
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