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Pyrocoproite: (Mg(K,Na))2P2O7
Comments: Admixture of platy indented crystals of pyrocoproite (p) and tabular opal-C (O). Location: Ghar al Hibashi (Hebashi) is a lava cave near Harrat Nawasif/Al Buqum, located east of Makkah in the Kingdom of Saudi Arabia. Scale: See Image. © Saudi Geological Survey
Comments: SEM image of pyrocoproite crystals with concoidal fracture. Location: Ghar al Hibashi (Hebashi) is a lava cave near Harrat Nawasif/Al Buqum, located east of Makkah in the Kingdom of Saudi Arabia. Scale: See Image. © Saudi Geological Survey
Pyrolusite: MnO2
Comments: Steel-gray metallic prismatic pyrolusite crystals. Location: Hori Blatna, Czech Republic. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Pyromorphite: Pb5(PO4)3Cl
Comments: Apple green pyromorphite. Location: San Andres Mine, Villaviciosa, Cordoba, Spain. Scale: 6.5 x 5 cm. © Fabre Minerals
Pyrope: Mg3Al2(SiO4)3
Comments: Transparent, dark-red pyrope garnet. Location: Governador Valadares, Rio Doce, Minas Gerais, Southeast Region, Brazil. Scale: 6x6x6 mm. © John Betts - Fine Minerals
Pyrophanite: MnTiO3
Comments: Red-brown platy pyrophanite crystals with deep red internal hints, associated with barite. Location: Harstigen Mine, Pajsberg, Filipstad, Värmland, Sweden. Scale: See Image. © Rruff Database
Pyrophyllite: Al2Si4O10(OH)2 Rutile: TiO2
Comments: Rutile on fine-grained pyrophyllite. Location: Graves Mt. Georgia, USA. Scale: 4.5 x 5 cm. © Fabre Minerals
Pyrosmalite-(Fe): (Fe++,Mn)8Si6O15(OH,Cl)10
Comments: Crystal of ferropyrosmalite on clinochlore schist. Location: Normark, Wermland, Sweden. Scale: Crystal size 1 cm. © John Veevaert
Pyrosmalite-(Mn): (Mn,Fe++)8Si6O15(OH,Cl)10
Comments: Hexagonal, light brown crystals of manganpyrosmalite. Location: Nordmark, Filipstad, Varmland, Sweden. Scale: Crystal size 1.5 mm. © Tom Loomis / Dakota Matrix
Comments: Greenish brown, blocky crystals of manganpyrosmalite in matrix. Individual crystals are up to 7 mm long. Location: Nordmark, Varmland, Sweden. Scale: Picture size 5 cm. © John Veevaert