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.

2 specimens starting with "0-9" (of 5,084 total)

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Šreinite

Hardness: 2 - 4

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Štěpite

Hardness: 2

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Other (498)Igneous (34)Metamorphic (25)Quartz (23)Zeolite (22)Sedimentary (22)Tourmaline Group (18)Fossil (15)Chalcedony (15)Jasper (12)Eudialyte group (9)Calcium Amphibole Subgroup (8)View All Categories

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