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.
48 specimens starting with "I" (of 5,084 total)
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Ianbruceite
Hardness: 1
Iangreyite
Ianthinite
Hardness: 2 - 3
Ice
Hardness: 1.5
Ice-vii
Ichnusaite
Icosahedrite
Idrialite
Hardness: 1.5
Iimoriite-(y)
Hardness: 5.5 - 6
Ikaite
Ikunolite
Hardness: 2
Ilímaussite-(ce)
Hardness: 4
Ilinskite
Hardness: 1.5
Ilmajokite-(ce)
Hardness: 1
Ilsemannite
Iltisite
Ima2019-039
Imandrite
Hardness: 5 - 5.5
Imhofite
Hardness: 2
Imiterite
Hardness: 2.5 - 3
Imogolite
Hardness: 2 - 3
Inaglyite
Hardness: 5.5
Indialite
Hardness: 7 - 7.5
Indigirite
Hardness: 2
Indium
Hardness: 3
Inesite
Hardness: 5.5 - 6
Ingersonite
Hardness: 6.5
Innelite
Hardness: 4.5 - 5
Innsbruckite
Hardness: 6
Intersilite
Hardness: 3 - 4
Iodargyrite
Hardness: 1.5 - 2
Iquiqueite
Hardness: 2
Irhtemite
Iridarsenite
Hardness: 5 - 5.5
Iridium
Hardness: 6 - 7
Iriginite
Hardness: 1 - 2
Isoclasite
Hardness: 1
Isocubanite
Hardness: 3.5
Isoferroplatinum
Hardness: 5
Isovite
Hardness: 8
Isselite
Itelmenite
Itoite
Ivanyukite-na-t
Hardness: 4
Ivsite
Iwashiroite-(y)
Hardness: 6
Iwateite
Ixiolite
Hardness: 6 - 6.5
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