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 3601-3660 of 5,084 specimens
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Plumboagardite
Hardness: 3
Plumboferrite
Hardness: 5
Plumbojarosite
Hardness: 1.5 - 2
Plumbonacrite
Hardness: 3.5
Plumbopalladinite
Hardness: 5
Plumboperloffite
Plumbopharmacosiderite
Hardness: 2.5 - 3
Plumbophyllite
Hardness: 5
Plumboselite
Hardness: 2 - 3
Plumbostannite
Hardness: 2
Plumbotellurite
Plumbotsumite
Hardness: 2
Podlesnoite
Hardness: 3.5 - 4
Poirierite
Poitevinite
Hardness: 3.5
Pokhodyashinite
Pokrovskite
Hardness: 3
Polarite
Hardness: 3.5 - 4
Poldervaartite
Hardness: 5
Polekhovskyite
Polezhaevaite-(ce)
Hardness: 3
Polhemusite
Hardness: 4.5
Polkanovite
Polkovicite
Hardness: 3.5
Polloneite
Hardness: 3 - 3.5
Pollucite
Hardness: 6.5
Polyakovite-(ce)
Hardness: 5.5 - 6
Polyarsite
Polycrase
Polycrase-(y)
Hardness: 5 - 6
Polydymite
Hardness: 4.5 - 5.5
Polyhalite
Hardness: 2.5 - 3.5
Polylithionite
Hardness: 2 - 3
Polyphite
Ponomarevite
Hardness: 2.5
Popovite
Hardness: 3.5
Poppiite
Popugaevaite
Portlandite
Hardness: 2.5 - 3
Pošepnýite
Posnjakite
Hardness: 2 - 3
Postite
Hardness: 2
Potarite
Hardness: 3.5
Potassic-arfvedsonite
Potassic-chloro-hastingsite
Hardness: 4.5 - 5
Potassic-chloro-pargasite
Potassic-ferri-leakeite
Hardness: 5
Potassic-ferro-ferri-sadanagaite
Hardness: 5.5 - 6
Potassic-ferro-ferri-taramite
Potassic-ferro-pargasite
Hardness: 6
Potassic-ferro-sadanagaite
Potassic-ferro-taramite
Hardness: 5 - 6
Potassic-fluoro-hastingsite
Hardness: 6
Potassic-fluoro-pargasite
Hardness: 6.5
Potassic-fluoro-richterite
Hardness: 5 - 6
Potassic-hastingsite
Potassic-jeanlouisite
Potassic-magnesio-arfvedsonite
Potassic-magnesio-fluoro-arfvedsonite
Potassic-magnesio-hastingsite
Hardness: 6.5
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