Jeff Weissman's Image Gallery

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Images from Jeff Weissman

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Jeff Weissman's Image Gallery With 1177 Images

Orthochamosite Image

Images:

Orthochamosite: (Fe++,Mg,Fe+++)5Al(Si3Al)O10(OH,O)8

Comments: Pale green micaceous orthochamosite in quartz.
Location: Near Manggruvan, Sweden. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Orthochrysotile Image

Images:

Orthochrysotile: Mg3Si2O5(OH)4

Comments: Pale tan asbestos fiber (orthochrysotile) vein in rock.
Location: El Dorado Mine, Salt River Canyon, Gila County, Arizona, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Orthoericssonite Image

Images:

Orthoericssonite: BaMn2(Fe+++O)Si2O7(OH)
Ericssonite: BaMn++2Fe+++O[Si2O7](OH)
Tephroite: Mn2SiO4

Comments: Dark brown ericssonite, intergrown with orthoericssonite, with pink rhodonite, light brown diopside (var. schefferite) and gray tephroite.
Location: Langban, Varmland, Sweden. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Osumilite-(Mg) Image

Images:

Osumilite-(Mg): (K,Na)(Mg,Fe++)2(Al,Fe+++)3(Si,Al)12O30

Comments: Sapphire-blue colored osumilite-(Mg) crystal in dacite.
Location: Yamanoguchi, Iriki, Satsuma-gun, Kagoshima Prefecture, Kyushu Island, Japan. Scale: Crystal Size 0.05 cm.
© Jeff Weissman / Photographic Guide to Mineral Species

Ottrelite Image

Images:

Ottrelite: (Mn,Fe++,Mg)2Al4Si2O10(OH)4

Comments: Dark green crystalline ottrelite in quartz.
Location: Vielsalm, Luxembourg, Belgium. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Otwayite Image

Images:

Otwayite: Ni2(CO3)(OH)2·(H2O)

Comments: Pale green botryoidal otwayite on serpentinite rock.
Location: Otway Prospect, Nullagin Plain, Western Australia, Australia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Overite Image

Images:

Overite: CaMgAl(PO4)2(OH)·4(H2O)

Comments: Clear, pale yellow prismatic crystals of overite deep inside a crandallite vug.
Location: Clay Canyon, Fairfield, Oquirrh Mts, Utah Co., Utah, USA. Scale: Picture Size 2.5 mm.
© Jeff Weissman / Photographic Guide to Mineral Species

Owyheeite Image

Images:

Owyheeite: Pb7Ag2(Sb,Bi)8S20

Comments: Acicular owyheeite microcrystals in quartz.
Location: Lower Magnolia Mine, Morey District, Nye County, Nevada, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Oxammite Image

Images:

Oxammite: (NH4)2(C2O4)·(H2O)

Comments: Pale yellow translucent crystalline granular oxammite.
Location: Petrogale Cave, Western Australia, Australia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Pachnolite Image

Images:

Pachnolite: NaCaAlF6·(H2O)

Comments: Color-zoned (darker core) prismatic translucent pachnolite crystals, with secondary white prismatic microcrystals.
Location: Ivigtut, Greenland. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Palladium Image

Images:

Palladium: Pd,Pt

Comments: Platinum-rich palladium nugget, mounted in epoxy, with one side polished.
Location: Itabira, Minas Gerais, Brazil. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Palladseite Image

Images:

Palladseite: Pd17Se15

Comments: Irregular metallic palladseite grain.
Location: Itabira, Minas Gerais, Brazil. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Palygorskite Image

Images:

Palygorskite: (Mg,Al)2Si4O10(OH)·4(H2O)

Comments: Compact massive palygorskite.
Location: Senton, Devon, England. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Paracelsian Image

Images:

Paracelsian: BaAl2Si2O8

Comments: Translucent paracelsian crystals on matrix.
Location: Benalt Mine, Rhiw, Carnarvonshire, Gwynedd, Wales. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Paragonite Image

Images:

Paragonite: NaAl2(Si3Al)O10(OH)2

Comments: Silvery micaceous paragonite comprising schist rock, with garnet crystals.
Location: Gassettts, New Hampshire, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Paraguanajuatite Image

Images:

Paraguanajuatite: Bi2(Se,S)3
Platynite: (Bi,Pb)3(Se,S)4

Comments: Bright metallic gray platy crystalline platynite, with dull black paraguanajuatite.
Location: Falun, Kopparberg, Sweden. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Parakeldyshite Image

Images:

Parakeldyshite: Na2ZrSi2O7

Comments: White pearly crystalline parakeldyshite in rock.
Location: Lagendalen, Larvik, Vestfold, Norway. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Paralstonite Image

Images:

Paralstonite: BaCa(CO3)2

Comments: Translucent bright white steep pyramidal paralstonite microcrystals on fluorite.
Location: Bethel Level, Minerva #1 Mine, Cave-in-Rock, Hardin County, Illinois, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Paramelaconite Image

Images:

Paramelaconite: Cu+2Cu++2O3

Comments: black paramelaconite masses with blue chrysocolla.
Location: Algoma Mine, Otonagon County, Michigan, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Paramendozavilite Image

Images:

Paramendozavilite: NaAl4Fe+++7(PO4)5(P+++++Mo++++++12O40)(OH)16·56(H2O)

Comments: Bright yellow paramendozavilite coatings on matrix.
Location: Cumobabi, Sonora, Mexico. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

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