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.
Showing 1801-1860 of 5,084 specimens
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Heulandite-k
Hardness: 3 - 3.5
Heulandite-na
Hardness: 3 - 3.5
Heulandite-sr
Hardness: 3 - 3.5
Hewettite
Hexacelsian
Hexaferrum
Hardness: 6 - 7
Hexahydrite
Hardness: 2 - 2.5
Hexahydroborite
Hardness: 2.5
Hexamolybdenum
Heyerdahlite
Hardness: 3
Heyite
Hardness: 4
Heyrovskýite
Hardness: 4 - 5
Hezuolinite
Hardness: 5.5 - 6
Hiärneite
Hardness: 7
Hibbingite
Hibonite
Hardness: 7.5 - 8
Hibonite-(fe)
Hidalgoite
Hardness: 4.5
Hielscherite
Hardness: 2 - 2.5
Hieratite
Hardness: 2.5
Hilairite
Hardness: 4.5
Hilarionite
Hardness: 2
Hilgardite
Hardness: 5
Hillebrandite
Hardness: 5 - 5.5
Hillesheimite
Hardness: 4
Hillite
Hardness: 3.5
Hingganite-(ce)
Hardness: 5 - 6
Hingganite-(nd)
Hardness: 5 - 6
Hingganite-(y)
Hardness: 6 - 7
Hingganite-(yb)
Hardness: 6 - 7
Hinsdalite
Hardness: 4.5
Hiortdahlite
Hardness: 5 - 5.5
Hiroseite
Hisingerite
Hardness: 2.5 - 3
Hitachiite
Hardness: 2.5 - 3
Hizenite-(y)
Hjalmarite
Hloušekite
Hardness: 2 - 3
Hocartite
Hardness: 4
Hochelagaite
Hardness: 4
Hodgesmithite
Hodgkinsonite
Hardness: 4.5 - 5
Hodrušite
Hardness: 4 - 5
Hoelite
Hoganite
Hogarthite
Hardness: 4
Høgtuvaite
Hardness: 5.5
Hohmannite
Hardness: 3
Hokoite
Holdawayite
Hardness: 3
Holdenite
Hardness: 4
Holfertite
Hardness: 4
Hollandite
Hardness: 4 - 6
Hollingworthite
Hardness: 6 - 6.5
Hollisterite
Holmquistite
Hardness: 5.5
Holtedahlite
Hardness: 4.5 - 5
Holtite
Hardness: 8.5
Holtstamite
Homilite
Hardness: 5 - 5.5
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