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 "X" (of 5,084 total)
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Xanthiosite
Hardness: 4
Xanthoconite
Hardness: 2 - 3
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Xanthoxenite
Hardness: 2.5
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Xenophyllite
Hardness: 3.5 - 4
Xenotime
Hardness: 4.5
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Xenotime-(y)
Hardness: 4 - 5
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Xenotime-(yb)
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Xiangjiangite
Hardness: 1 - 2
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Xieite
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Xifengite
Hardness: 5
Xilingolite
Hardness: 3
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Ximengite
Hardness: 4.5
Xingzhongite
Hardness: 6
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Xitieshanite
Hardness: 2.5
Xocolatlite
Hardness: 2 - 3
Xocomecatlite
Hardness: 4
Xonotlite
Hardness: 6.5
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Xuite
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