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Phosphoferrite: (Fe++,Mn)3(PO4)2·3(H2O)
Comments: Translucent, brown crystal of phosphoferrite on matrix. Location: Big Chief mine, Keystone, Pennington County, South Dakota, USA. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Phosphofibrite: KCuFe+++15(PO4)12(OH)12·12(H2O) Crandallite: CaAl3(PO4)2(OH)5·(H2O)
Comments: Olive-green colored fibrous phosphofibrite aggregates with white crandallite. Location: Silver Coin Mine, Humboldt County, Nevada, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Phosphohedyphane: Ca2Pb3(PO4)3Cl
Comments: Clear, prismatic phosphohedyphane crystal on matrix. Location: Argentena mine, Goodsprings, Clark Co., Nevada, USA. Scale: Crystal size 0.5mm. © Tom Loomis / Dakota Matrix
Phosphoinnelite: Ba4Na3Ti3Si4O14(PO4,SO4)2(O,F)3
Comments: Yellowish inclusions of phosphoinnelite in matrix. Location: Kovdor Phlogopite Quarry, Kovdor Massif, Kola Peninsula, Russia. Scale: Specimen Size 15x10x8 mm. © Sergey Vasiliev / Systematic Mineralogy
Phosphophyllite: Zn2(Fe++,Mn)(PO4)2·4(H2O)
Comments: Transparent, blue crystal of phosphophyllite. Location: Hagendorf, Bavaria, Germany. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Phosphosiderite: Fe+++PO4·2(H2O) Barbosalite: Fe++Fe+++2(PO4)2(OH)2
Comments: Transparent, brown crystal of phosphosiderite on black barbosalite. Location: Bull Moose mine, Custer, Custer County, South Dakota, USA. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Phosphosiderite: Fe+++PO4·2(H2O) Tinsleyite: KAl2(PO4)2(OH)·2(H2O) Rockbridgeite: (Fe++,Mn)Fe+++4(PO4)3(OH)5
Comments: Violet botryoidal tinsleyite on bluish-purple botryoidal phosphosiderite on dark, massive rockbridgeite. Location: Bendada, Guarda, Portugal. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Phosphovanadylite: (Ba,Ca,K,Na)x[(V,Al)4P2(O,OH)16]·12(H2O) x~0.66
Comments: Scanning electron microscope micrographs showing the cubic habit of phosphovanadylite. (AmMin 83:890). Location: Phosphoria Formation at Monsanto’s Enoch Valley Mine, Soda Springs, Idaho. Scale: Crystal size 40 µm. © American Mineralogist
Phosphowalpurgite: (UO2)Bi4(PO4)O4·2(H2O)
Comments: Scanning electron photomicrograph of tabular crystals (up to 330 microm) of phosphowalpurgite, (CanMin, 42:966).. Location: Old mine dumps of an abandoned small ore deposit near Smrkovec, located 10 km NNE of Mariánské Lázn?, Slavkovský Les Mountains, western Bohemia, Czech Republic. Scale: Picture Size 515 µ-m. © Canadian Mineralogist
Phosphuranylite: KCa(H3O)3(UO2)7(PO4)4O4·8(H2O)
Comments: Bright yellow orange crystals of phosphuranylite on matrix. Location: Wagontown, Chester County, Pennsylvania, USA. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Phosphuranylite: KCa(H3O)3(UO2)7(PO4)4O4·8(H2O) Uranocircite: Ba(UO2)2(PO4)2·12(H2O)
Comments: Yellow, waxy phosphuranylite with green uranocircite in matrix. Location: Bergen, Falkenstein, Vogtland, Saxony, Germany. Scale: Picture size 0.5 cm. © Paul M. Schumacher
Phuralumite: Al2(UO2)3(PO4)2(OH)6·10(H2O)
Comments: Yellow crystals of phuralumite scattered on white matrix. Location: Kobokobo Pegmatite, Lusungu River District, Kivu, Congo (Zaďre). Scale: Picture size 5 mm. © Thomas Witzke / Abraxas-Verlag
Phurcalite: Ca2(UO2)3O2(PO4)2·7(H2O)
Comments: Yellow phurcalite crystals on white aragonite. Location: Posey Mine, White Canyon District, San Juan County, Utah, USA. Scale: Picture site 0.5 cm. © Paul M. Schumacher
Comments: Coatings of minute acicular phurcalite crystals on sandstone. Location: Posey Mine, Red Canyon, White Canyon District, San Juan County, Utah, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Comments: Bright canary yellow acicular phurcalite crystals to about 0.25mm. Seems to have overgrown perhaps torbernite and individual groups are to 1mm. Location: El Azul mine, Los Azules district, Copiapo Province, Atacama, Chile. Scale: Picture Size 5 mm. © Tom Loomis / Dakota Matrix
Pianlinite: Kaolinite: Al2Si2O5(OH)4
Comments: Off-white colored minute pianlinite (kaolinite) fragment. Location: Pianling, China. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Pickeringite: MgAl2(SO4)4·22(H2O) Magnesioaubertite: (Mg,Cu)Al(SO4)2Cl·14(H2O)
Comments: Aqua crystalline magnesioaubertite with white pickeringite. Location: Grotto di Faraglione, Vulcano, Sicily, Italy. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Pickeringite: MgAl2(SO4)4·22(H2O)
Comments: Radiating fibrous pickeringite. Location: Patagonia, Santa Cruz County, Arizona, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Picotpaulite: TlFe2S3
Comments: SEM image of a polished secton of picotpaulite inclusions in realgar, most likely associated with lorandite as well. Location: Allchar (Alsar), Roszdan, Republic of Macedonia. Scale: Picture Size 300 µm. © Jeff Weissman / Photographic Guide to Mineral Species
Picromerite: K2Mg(SO4)2·6(H2O)
Comments: Blocky white picromerite crystals on reddish halite. Location: Heringen, Werra Valley, North Hesse, Hesse, Germany. Scale: Specimen Size 5.5 x 4.7 x 3.4 cm. © Rob Lavinsky