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 3481-3540 of 5,084 specimens
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Pentlandite
Hardness: 3.5 - 4
Penzhinite
Peprossiite-(ce)
Hardness: 2
Perbøeite-(ce)
Hardness: 6 - 7
Perbøeite-(la)
Percleveite-(ce)
Hardness: 6
Percleveite-(la)
Peretaite
Hardness: 3.5 - 4
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Perettiite-(y)
Hardness: 7
Perhamite
Hardness: 5
Periclase
Hardness: 5.5
Perite
Hardness: 3
Perlialite
Hardness: 4 - 5
Perloffite
Hardness: 5
Permingeatite
Hardness: 4 - 4.5
Perovskite
Hardness: 5.5
Perraultite
Hardness: 6.5
Perrierite-(ce)
Hardness: 5.5
Perrierite-(la)
Hardness: 6
Perroudite
Hardness: 2
Perryite
Pertlikite
Pertsevite-(f)
Pertsevite-(oh)
Hardness: 5.5 - 6.5
Petalite
Hardness: 6.5
Petarasite
Hardness: 5 - 5.5
Petedunnite
Hardness: 5 - 6
Peterandresenite
Hardness: 2 - 2.5
Peterbaylissite
Hardness: 4 - 5
Petersenite-(ce)
Hardness: 3
Petersite-(ce)
Petersite-(la)
Petersite-(y)
Hardness: 3 - 4
Petewilliamsite
Petitjeanite
Hardness: 4.5
Petříčekite
Hardness: 2 - 2.5
Petrovicite
Hardness: 3
Petrovite
Petrovskaite
Hardness: 2 - 2.5
Petrukite
Hardness: 4.5
Petscheckite
Hardness: 5
Petterdite
Hardness: 2
Petzite
Hardness: 2.5 - 3
Pharmacoalumite
Hardness: 2.5
Pharmacolite
Hardness: 2 - 2.5
Pharmacosiderite
Hardness: 2.5
Pharmazincite
Phaunouxite
Philipsbornite
Hardness: 4.5
Philipsburgite
Hardness: 3 - 4
Phillipsite-ca
Hardness: 4 - 5
Phillipsite-k
Hardness: 4 - 5
Phillipsite-na
Hardness: 4 - 5
Philolithite
Hardness: 3 - 4
Philoxenite
Philrothite
Hardness: 3 - 3.5
Phoenicochroite
Hardness: 2.5
Phosgenite
Hardness: 2 - 3
Phosinaite-(ce)
Hardness: 3.5
Phosphammite
Hardness: 1
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