Jeff Weissman's Image Gallery

Images from Jeff Weissman

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Jeff Weissman's Image Gallery With 2354 Images

Pokrovskite Image

Images:

Pokrovskite: Mg2(CO3)(OH)2·0.5(H2O)
Hydromagnesite: Mg5(CO3)4(OH)2·4(H2O)

Comments: Tan spherical pokrovskite on serpentinite rock with white hydromagnesite sprays.
Location: KCA Quarry, San Benito County, California, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Pokrovskite Image

Images:

Pokrovskite: Mg2(CO3)(OH)2·0.5(H2O)
Hydromagnesite: Mg5(CO3)4(OH)2·4(H2O)

Potassicferrisadanagaite Image

Images:

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

Potassicferrisadanagaite Image

Images:

Potassicferrisadanagaite: (K,Na)Ca2(Fe++,Mg)2(Fe+++,Al)2[Si5Al3O22](OH,F,O)2

Potassicpargasite Image

Images:

Potassicpargasite: (K,Na)Ca2(Mg,Fe++)5Si8O22(OH,F)2

Comments: Brownish-black potassicpargasite crystal in calcite (repaired).
Location: Simonby, Pargas, Turku ja Pori, Finland. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Potassicpargasite Image

Images:

Potassicpargasite: (K,Na)Ca2(Mg,Fe++)5Si8O22(OH,F)2

Potassicsadanagaite Image

Images:

Potassicsadanagaite: (K,Na)Ca2[Fe++3(Al,Fe+++)2][Si5Al3O22](OH)2

Comments: Dark greenish black crystalline potassicsadanagaite fragments.
Location: Ilmeny Mountains, Chelyabinsk District, Southern Urals, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Potassicsadanagaite Image

Images:

Potassicsadanagaite: (K,Na)Ca2[Fe++3(Al,Fe+++)2][Si5Al3O22](OH)2

Poubaite Image

Images:

Poubaite: PbBi2Se2(Te,S)2

Comments: Gray granular crystalline poubaite in white calcite.
Location: Oldrichov, near Tachov, western Bohemia, Zapadocesky, Czech Republic. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Poubaite Image

Images:

Poubaite: PbBi2Se2(Te,S)2

Povondraite Image

Images:

Povondraite: (Na,K)(Fe+++,Fe++)3(Fe,Mg,Al)6(BO3)3Si6O18(OH)4

Comments: Deep greenish black povondraite crystals.
Location: Malacacheta, Minas Gerais, Brazil. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Povondraite Image

Images:

Povondraite: (Na,K)(Fe+++,Fe++)3(Fe,Mg,Al)6(BO3)3Si6O18(OH)4

Comments: Deep greenish black povondraite crystals.
Location: Malacacheta, Minas Gerais, Brazil. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Poyarkovite Image

Images:

Poyarkovite: Hg3ClO

Comments: Dark greenish black thin poyarkovite film on white chert.
Location: Elena, Durango, Mexico. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Poyarkovite Image

Images:

Poyarkovite: Hg3ClO

Comments: Dark greenish black thin poyarkovite film on white chert.
Location: Elena, Durango, Mexico. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Preiswerkite Image

Images:

Preiswerkite: NaMg2Al3Si2O10(OH)2

Comments: Pale green fine grained preiswerkite masses in dark amphibolite rock.
Location: Geisspfad, Binnental, Valias, Switzerland. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Preiswerkite Image

Images:

Preiswerkite: NaMg2Al3Si2O10(OH)2

Preobrazhenskite Image

Images:

Preobrazhenskite: Mg3B11O15(OH)9

Comments: Crudely formed white to tan translucent preobrazhenskite crystal on yellow crystalline massive material.
Location: Lake Inder, Atyrau, Kazakhstan. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Preobrazhenskite Image

Images:

Preobrazhenskite: Mg3B11O15(OH)9

Priceite Image

Images:

Priceite: Ca2B5O7(OH)5·H2O

Comments: Botryoidal priceite aggregate.
Location: Lone Randi Quarry, Curry County, Oregon, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Priceite Image

Images:

Priceite: Ca2B5O7(OH)5·H2O

Comments: Botryoidal priceite aggregate.
Location: Lone Randi Quarry, Curry County, Oregon, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

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