Mineral Specimen Images (F)

Mineral Specimen Images (F)
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Mineral Specimen Images (F) With 414 Images

Fredrikssonite Image

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Fredrikssonite: Mg2(Mn+++,Fe+++)O2(BO3)  
Hausmannite: Mn++Mn+++2O4

Comments: Red-brown elongated crystalline fredrikssonite in calcite with granular hausmannite.
Location: Langban, Varmland, Sweden. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Fredrikssonite Image

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Fredrikssonite: Mg2(Mn+++,Fe+++)O2(BO3)  
Hausmannite: Mn++Mn+++2O4

Comments: Red-brown elongated crystalline fredrikssonite in calcite with granular hausmannite.
Location: Langban, Varmland, Sweden. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Freibergite Image

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Freibergite: (Ag,Cu,Fe)12(Sb,As)4S13

Comments: Dark metallic freibergite in white quartz.
Location: Freiberg, Freiberg District, Erzgebirge, Saxony, Germany. Scale: 35x20x10 mm.
© John Betts - Fine Minerals

Freibergite Image

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Freibergite: (Ag,Cu,Fe)12(Sb,As)4S13

Comments: Dark metallic freibergite in white quartz.
Location: Freiberg, Freiberg District, Erzgebirge, Saxony, Germany. Scale: 35x20x10 mm.
© John Betts - Fine Minerals

Freieslebenite Image

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Freieslebenite: AgPbSbS3

Comments: Dark gray prismatic crystal of freieslebenite on quartz.
Location: Neue Hoffnung Gottes Mine, Bräunsdorf, Freiberg District, Erzgebirge, Saxony, Germany. Scale: Picture size 1.5 mm.
© Thomas Witzke / Abraxas-Verlag

Freieslebenite Image

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Freieslebenite: AgPbSbS3

Comments: Dark gray prismatic crystal of freieslebenite on quartz.
Location: Neue Hoffnung Gottes Mine, Bräunsdorf, Freiberg District, Erzgebirge, Saxony, Germany. Scale: Picture size 1.5 mm.
© Thomas Witzke / Abraxas-Verlag

Fresnoite Image

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Fresnoite: Ba2TiSi2O8

Comments: Yellow to peach colored crystals of fresnoite.
Location: Junnila Mine, San Benito County, California, USA. Scale: Crystal size 5 mm.
© John Veevaert

Fresnoite Image

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Fresnoite: Ba2TiSi2O8

Comments: Yellow to peach colored crystals of fresnoite.
Location: Junnila Mine, San Benito County, California, USA. Scale: Crystal size 5 mm.
© John Veevaert

Freudenbergite Image

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Freudenbergite: Na2Fe+++2Ti6O16

Comments: BSE image of a sector-zoned crystal of freudenbergite. The bright pyramids correspond to sector (001), and the darker ones belong to sector (100).
Location: Peralkaline alkali syenite dikes at Katzenbuckel, southwestern Germany. Scale: See Image.
© Canadian Mineralogist

Freudenbergite Image

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Freudenbergite: Na2Fe+++2Ti6O16

Comments: BSE image of a sector-zoned crystal of freudenbergite. The bright pyramids correspond to sector (001), and the darker ones belong to sector (100).
Location: Peralkaline alkali syenite dikes at Katzenbuckel, southwestern Germany. Scale: See Image.
© Canadian Mineralogist

Friedelite Image

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Friedelite: Mn8Si6O15(OH,Cl)10

Comments: Rose red crystals of friedelite on matrix.
Location: Sterling Hill, Ogdensburg, Sussex County, New Jersey, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Friedelite Image

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Friedelite: Mn8Si6O15(OH,Cl)10

Comments: Rose red crystals of friedelite on matrix.
Location: Sterling Hill, Ogdensburg, Sussex County, New Jersey, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Friedrichite Image

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Friedrichite: Pb5Cu5Bi7S18  
Krupkaite: PbCuBi3S6  
Benjaminite: (Ag,Cu)3(Bi,Pb)7S12

Comments: Crystals of a mixture of friedrichite, krupkaite, and benjaminite, with quartz crystals.
Location: Estela Mine, Julcani District, Junin, Peru. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Friedrichite Image

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Friedrichite: Pb5Cu5Bi7S18  
Krupkaite: PbCuBi3S6  
Benjaminite: (Ag,Cu)3(Bi,Pb)7S12

Comments: Crystals of a mixture of friedrichite, krupkaite, and benjaminite, with quartz crystals.
Location: Estela Mine, Julcani District, Junin, Peru. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Frohbergite Image

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Frohbergite: FeTe2

Comments: Irregular black mssses of frohbergite in quartzite matrix.
Location: San Simon Basin (San Simon River; Bowie Chabazite deposit), Bowie area, Cochise Co., Arizona, USA. Scale: Picture Size 2.5 mm.
© Jeff Weissman / Photographic Guide to Mineral Species

Frohbergite Image

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Frohbergite: FeTe2

Comments: Irregular black mssses of frohbergite in quartzite matrix.
Location: San Simon Basin (San Simon River; Bowie Chabazite deposit), Bowie area, Cochise Co., Arizona, USA. Scale: Picture Size 2.5 mm.
© Jeff Weissman / Photographic Guide to Mineral Species

Frolovite Image

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Frolovite: CaB2(OH)8

Comments: Clear to white crystalline frolovite in rock.
Location: Solongo, Republic of Buryatia, Siberia, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Frolovite Image

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Frolovite: CaB2(OH)8

Comments: Clear to white crystalline frolovite in rock.
Location: Solongo, Republic of Buryatia, Siberia, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Frondelite Image

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Frondelite: Mn++Fe+++4(PO4)3(OH)5  
Kidwellite: Na(Fe+++,Cu)9+x(PO4)6(OH)11·3(H2O)

Comments: Root beer colored crystals of frondelite and white kidwellite sticks on matrix.
Location: Sapucaia, Minas Gerais, Brazil. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Frondelite Image

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Frondelite: Mn++Fe+++4(PO4)3(OH)5  
Kidwellite: Na(Fe+++,Cu)9+x(PO4)6(OH)11·3(H2O)

Comments: Root beer colored crystals of frondelite and white kidwellite sticks on matrix.
Location: Sapucaia, Minas Gerais, Brazil. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals
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