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 3181-3240 of 5,084 specimens
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Nizamoffite
Hardness: 3.5
Nobleite
Hardness: 3
Noelbensonite
Hardness: 4
Nöggerathite-(ce)
Hardness: 5.5
Nolanite
Hardness: 5 - 5.5
Nollmotzite
Nolzeite
Nontronite
Hardness: 1.5 - 2
Noonkanbahite
Hardness: 6
Norbergite
Hardness: 6 - 6.5
Nordenskiöldine
Hardness: 5.5 - 6
Nordgauite
Nordite-(ce)
Hardness: 5
Nordite-(la)
Hardness: 5 - 6
Nordstrandite
Hardness: 3
Nordströmite
Hardness: 2 - 2.5
Norilskite
Hardness: 4
Normandite
Hardness: 5 - 6
Norrishite
Hardness: 2.5
Norsethite
Hardness: 3.5
Northstarite
Northupite
Hardness: 3.5 - 4
Nosean
Hardness: 5.5
Nováčekite-i
Hardness: 2.5
Nováčekite-ii
Hardness: 2 - 2.5
Novákite
Hardness: 3 - 3.5
Novgorodovaite
Hardness: 2.5
Novodneprite
Novograblenovite
Hardness: 1 - 2
Nowackiite
Hardness: 3.5 - 4
Nsutite
Hardness: 6.5 - 8
Nuffieldite
Hardness: 3.5 - 4
Nukundamite
Hardness: 3.5
Nullaginite
Hardness: 1.5 - 2
Numanoite
Hardness: 4.5
Nuragheite
Nuwaite
Nybøite
Hardness: 5 - 6
Nyerereite
Nyholmite
Hardness: 3 - 3.5
O'danielite
Hardness: 4
Oberthürite
Obradovicite-kcu
Hardness: 2.5
Obradovicite-nacu
Hardness: 2
Obradovicite-nana
Hardness: 2
Odigitriaite
Hardness: 5
Odikhinchaite
Odinite
Hardness: 2.5
Odintsovite
Hardness: 5 - 5.5
Oenite
Hardness: 5 - 5.5
Offretite
Hardness: 4 - 4.5
Oftedalite
Hardness: 6
Ogdensburgite
Hardness: 2
Ognitite
Ohmilite
Hardness: 3.5
Ojuelaite
Hardness: 3
Okanoganite-(y)
Hardness: 4
Okayamalite
Hardness: 5.5
Okenite
Hardness: 4.5 - 5
Okhotskite
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