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Excalibur Mineral Corp. 1885 Seminole Trail - Suite 202 Charlottesville, VA 22901-1160 USA

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's Image Gallery With 4041 Images

Penkvilksite Image

Images:

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

Pennantite Image

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Pennantite: Mn5Al(Si3Al)O10(OH)8

Comments: Dark brown micaceous pennantite.
Location: Gambatesa Mine, Val Graveglia, Genova, Liguria, Italy. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Penobsquisite Image

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Penobsquisite: Ca2Fe++[B9O13(OH)6]Cl·4(H2O)

Comments: Clear crystal of penobsquisite.
Location: Inder B deposit and salt dome, Atyrau Oblysy, Kazakhstan. Scale: Crystal Size 7x6x4 mm.
© Sergey Vasiliev / Systematic Mineralogy

Penroseite Image

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Penroseite: (Ni,Co,Cu)Se2

Comments: Silvery metallic penroseite masses in matrix.
Location: Unnamed prospect in Pacajake Canyon, near Culquechaca, Potosi, Bolivia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Penroseite Image

Images:

Penroseite: (Ni,Co,Cu)Se2
Kitkaite: NiTeSe
Sederholmite: NiSe

Comments: B&W polished section image showing kitkaite replacing calcite in penroseite, clausthalite and sederholmite. Note the absence of the clausthalite envelope around kitkaite..
Location: Valley of the Kitka river in Kuusamo, northeast Finland. (AmMin, v50:581). Scale: 100 X.
© American Mineralogist

Pentagonite Image

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Pentagonite: Ca(VO)Si4O10·4(H2O)

Comments: Blue, crystalline aggregate of pentagonite on zeolite.
Location: Wagholi quarries, Poona, India. Scale: Grain size 1.2 cm.
© Tom Loomis / Dakota Matrix

Pentahydrite Image

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Pentahydrite: MgSO4·5(H2O)

Comments: White, powdery pentahydrite.
Location: Shaft 371, Schlema-Hartenstein area, Erzgebirge, Saxony, Germany. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Pentahydroborite Image

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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

Pentlandite Image

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Pentlandite: (Fe,Ni)9S8

Comments: Ore sample of a mixture of several sulfide minerals: pentlandite, chalcopyrite, and pyrrhotite.
Location: Frood-Stobie Mine, Sudbury District, Ontario, Canada. Scale: 20x15x7 mm.
© John Betts - Fine Minerals

Pentlandite Image

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Pentlandite: (Fe,Ni)9S8
Plumbopalladinite: Pd3Pb2
Valleriite: 4(Fe,Cu)S·3(Mg,Al)(OH)2
Cubanite: CuFe2S3

Comments: Polished Section image (PPL) of plumbopalladinite (Pl) with polarite Po), surrounded by a rim of isoferroplatinum (Iso) with cubanite (Cu), pentlandite (Pe), and valleriite (Va).
Location: Majak Mine, Talnakh, Norilsk, Ural, Russia. Scale: Picture Size 0.7 mm.
© Thomas Witzke

Peprossiite-(Ce) Image

Images:

Peprossiite-(Ce): (Ce,La)(Al3O)2/3B4O10

Comments: Yellow grains of peprossiite-(Ce) on matrix.
Location: Sacrofano Caldera, Campagnano, Lazio, Italy. Scale: Specimen Size 11x4x4 mm.
© Sergey Vasiliev / Systematic Mineralogy

Peretaite Image

Images:

Peretaite: CaSb+++4O4(OH)2(SO4)2·2(H2O)

Comments: Clear, tabular, bladed, stellate spray of transparent peretaite crystals.
Location: Pereta mine, Scansano, Tuscany, Italy. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Perhamite Image

Images:

Perhamite: Ca3Al7(SiO4)3(PO4)4(OH)3·16.5(H2O)

Comments: Squat, columnar perhamite crystals on matrix.
Location: Emmons quarry, Greenwood, Oxford County, Maine, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Periclase Image

Images:

Periclase: MgO

Comments: Green nickel-rich periclase on matrix.
Location: Ronneburg U deposit, Gera district, Thuringia, Germany. Scale: Picture size 1.5 mm.
© Thomas Witzke / Abraxas-Verlag

Periclase Image

Images:

Periclase: MgO
Srebrodolskite: Ca2Fe+++2O5

Comments: Black grains of srebrodolskite with white periclase.
Location: Ronneburg U deposit, Gera district, Thuringia, Germany. Scale: Picture size 2 mm.
© Thomas Witzke / Abraxas-Verlag

Perite Image

Images:

Perite: PbBiO2Cl

Comments: Pale yellow scaly crystalline perite on quartz.
Location: Benson, Cochise County, Arizona, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Perlialite Image

Images:

Perlialite: K8Tl4Al12Si24O72·20(H2O)

Comments: Opaque white fibrous perlialite coating on syenite rock.
Location: Khibiny Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Perloffite Image

Images:

Perloffite: Ba(Mn,Fe++)2Fe+++2(PO4)3(OH)3

Comments: Black, prismatic perloffite crystals on matrix.
Location: Big Chief mine, Keystone, Pennington County, South Dakota, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Perovskite Image

Images:

Perovskite: CaTiO3
Clinochlore: (Mg,Fe++)5Al(Si3Al)O10(OH)8

Comments: Square, opaque perovskite on green clinochlore. Very brilliant and with large crystals (2 x 1.5 cm.).
Location: Ilmen Mountains. Chelyabinsk, Urals, Russia. Scale: 6 x 4.5 cm.
© Fabre Minerals

Perovskite Image

Images:

Perovskite: CaTiO3
Sodalite: Na8Al6Si6O24Cl2

Comments: Clear crystals of sodalite with hoppered perovskite on matrix.
Location: Udersdorf, Rhineland-Palatinate, Germany. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

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