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Polylithionite: KLi2AlSi4O10(F,OH)2 Shibkovite: K(Ca,Mn,Na)2(K2-x,[ ]x)2ZnSi12O30 (x~0.8)
Comments: Clear crystalline shibkovite aggregates with peach colored translucent polylithionite. Location: Dara-Pioz, Tien-Shan, Tadzhikistan. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Polylithionite: KLi2AlSi4O10(F,OH)2
Comments: Rosette of polylithionite crystals. Location: Mt. St. Hilaire, Quebec, Canada. Scale: 2.5 x 2.3 cm. © John Veevaert
Ponomarevite: K4Cu++4OCl10
Comments: Orange ponomarevite. The sample stored in a closed vial. The photo was made through the vial. Location: Tolbachik volcano, Kamchatka Oblast', Far-Eastern Region, Russia. Scale: Picture size 3 mm. © Thomas Witzke / Abraxas-Verlag
Poppiite: Ca2(V+++,Fe+++,Mg)(V+++,Al)2(Si,Al)3(O,OH)14
Comments: SEM micrograph of a poppiite crystal fragment (AmMin v91. p585). Location: Gambatesa mine, near the village of Reppia (Val Graveglia, Northern Apennines, Italy). Scale: See Image. © American Mineralogist
Portlandite: Ca(OH)2
Comments: Cleaved mass of white portlandite. Location: Wessels Mine, Kalahari Manganese Field, Northern Cape Province, South Africa. Scale: 4 x 1.5 cm. © John Veevaert
Posnjakite: Cu4(SO4)(OH)6·(H2O)
Comments: Waxy blue aggregates of posnjakite. Location: Ecton mine, Audubon, Montgomery County, Pennsylvania, USA. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Potarite: PdHg
Comments: BSE probe image showing a composite grain of potarite (PdHg), and a PtNiFeCu alloy in an intertitial site and filling a fracture in a chromite grain (Chr). Location: Southern Quebec Ophiolite Belt, Thetford Mines ophiolitic complex, Canada. Scale: See Image. © National Resouces of Canada
Comments: Potarite grains in a geletin capsule. Location: Potaro River, Kangaruma District, Guyana. Scale: Sample Size 4.1 x 2.2 x 1.9 cm. © Rob Lavinsky
Potassiccarpholite: (K,Na,[ ])(Li,Mn++)2Al)4Si4O12(OH)4(F,OH)4
Comments: Tan prismatic crystal sprays of potassic-carpholite to about 2mm in matrix. Location: Sawtooth Batholith, near Centerville, Boise Co., Idaho, USA. Scale: Picture size 5 mm. © Tom Loomis / Dakota Matrix
Potassicferrisadanagaite: (K,Na)Ca2(Fe++,Mg)2(Fe+++,Al)2[Si5Al3O22](OH,F,O)2
Comments: Small crystalline fragments of potassicferrisadanagaite. Location: Ilmen Natural Reserve, Ilmen Mts, Chelyabinsk Oblast', Southern Urals, Urals Region, Russia. Scale: FOV 0.08 cm. © Jeff Weissman / Photographic Guide to Mineral Species