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Partheite: Ca2Al4Si4O15(OH)2·4(H2O)
Comments: 3 mm thick white band of partheite in matrix. Location: Denezhkin, Kamen, Nord Urals, Russia. Scale: 0.9 x 1.6 cm. © John Veevaert
Pascoite: Ca3V10O28·17(H2O)
Comments: Deep reddish-orange coatings of pascoite. Individual crystals up to about 0.25 mm. Location: Slick Rock, Enar Area, San Miguel County, Utah, USA. Scale: 3 x 2 cm. © John Veevaert
Paulingite-K: (K2,Ca,Na2,Ba)5Al10Si35O90·45(H2O)
Comments: Glassy clear micro crystals of paulingite line a vug in the basalt matrix. Location: Ritter, Grant County, Oregon, USA. Scale: 2.5 x 2 cm. © John Veevaert
Pectolite: NaCa2Si3O8(OH) Sugilite: KNa2(Fe+++,Mn+++,Al)2Li3Si12O30
Comments: Sharp terminated purple crystals of sugilite to 5mm on white, acicular pectolite. Location: Wessels Mine, Kalahari, South Africa. Scale: Picture size 1.5 cm. © John Veevaert
Penkvilksite: Na4(Ti++++,Zr)2[Si8O22]·4(H2O)
Comments: Massive white cluster of Penkvilksite. Location: Lovozero, Kola Peninsula, Russia. Scale: .5 x 2.5 cm. © John Veevaert
Pentahydroborite: CaB2O(OH)6·2(H2O)
Comments: Transparent, tabular crystal of pentahydroborite on massive material. Location: Fuka Mine, Bicchu Town, Kawakama Co., Okayama Pref., Japan. Scale: Crystal size 0.8 cm. © John Veevaert
Perroudite: Hg5-xAg4+xS5-x(Cl,I,Br)4+x
Comments: Cluster of needle-like crystals of red perroudite in quartz matrix. Location: Gap Garonne Mine, Le Pradet, Var, France. Scale: Crystal size 1 mm. © John Veevaert
Pharmacosiderite: KFe+++4(AsO4)3(OH)4·6-7(H2O) Arthurite: CuFe+++2(AsO4,PO4,SO4)2(O,OH)2·4(H2O)
Comments: Altered rhyolite vug lined with brilliant apple green arthurite and cubic green crystals of pharmacosiderite. Location: Majuba Hill Mine, Pershing County, Nevada. USA. Scale: 2.7 x 1.7 cm. © John Veevaert
Philipsburgite: (Cu,Zn)6(AsO4,PO4)2(OH)6·(H2O)
Comments: Green botryoidal micro crystals of philipsburgite. Location: Gold Hill mine, Tooele County, Utah, USA. Scale: Picture size 5 mm. © John Veevaert
Plagioclase: (Na,Ca)(Si,Al)4O8 Albite: NaAlSi3O8
Comments: Crystal group of bladed albite (variety cleavelandite) crystals. Location: Taquaral, Minas Gerais, Brazil. Scale: 7.4 x 5 cm. © John Veevaert
Plancheite: Cu8Si8O22(OH)4·(H2O)
Comments: Open vug lined with individual plancheite crystals to 3mm. Location: Mashamba West Mine, Shaba, Democratic Republic of the Congo. Scale: 2.5 x 1.7 cm. © John Veevaert
Planerite: Al6(PO4)2(PO3OH)2(OH)8·4(H2O)
Comments: Light green, oolitic coatings of planerite on matrix. Location: Mauldin Mountain Quarry, Mt. Ida, Montgomery County, Arkansas, USA. Scale: Picture size 0.5 cm. © John Veevaert
Poldervaartite: (Ca,Mn++)2SiO3(OH)2 Bultfonteinite: Ca2SiO2(OH,F)4
Comments: Bow-tie clusters of white, acicular bultfonteinite and blocky, beige-colored poldervaartite on matrix. Location: N'Chwaning mine, South Africa. Scale: picture size 4 cm. © John Veevaert
Polycrase-(Y): (Y,Ca,Ce,U,Th)(Ti,Nb,Ta)2O6
Comments: Large, black, blocky polycrase-(Y) crystal. Location: Hidra, Vest-Agder, Norway. Scale: Crystal size 0.8 X 2.0 cm. © John Veevaert
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
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
Potassic-ferritaramite: Ferritaramite: Na(CaNa)(Fe++,Mg)3Fe+++2[Si6Al2O22](OH)2
Comments: Lightly to moderately etched, blocky, jet black ferritaramite (potassic-ferritaramite is a not approved mineral name). Location: Niaslo, Basha Valley, Baltistan, Pakistan. Scale: 5 x 1.5 x 0.3 cm. © John Veevaert
Pottsite: PbBiH(VO4)2·2(H2O)
Comments: Sub-mm, bright yellow to orange pottsite crystals form coating on one side of specimen. Location: Linka Mine, Potts, Lander County, Nevada, USA. Scale: 3.5 x 4 cm. © John Veevaert
Priderite: (K,Ba)(Ti,Fe+++)8O16
Comments: Clusters of sub-mm black, opaque crystals of priderite. Location: Eveslogchorr Mt., Khibiny, Kola, Russia. Scale: 2.5 x 3.4 cm. © John Veevaert
Pseudomalachite: Cu5(PO4)2(OH)4 Halloysite: Al2Si2O5(OH)4
Comments: Deep green pseudomalachite crystals on cuprous halloysite. Location: Black Pine Mine, Philipsburg, Granite Co., Montana, USA. Scale: Crystal size 1-2 mm. © John Veevaert