Mineral Specimen Images (D)

Mineral Specimen Images (D)
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Mineral Specimen Images (D) With 272 Images

Dmisteinbergite Image

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Dmisteinbergite: CaAl2Si2O8  
Wairakite: CaAl2Si4O12·2(H2O)

Comments: Pearly platy crystalline dmisteinbergite with dull white wairakite on matrix.
Location: Kurumazawa, Katashina, Gumma, Japan. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Dmisteinbergite Image

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Dmisteinbergite: CaAl2Si2O8  
Wairakite: CaAl2Si4O12·2(H2O)

Comments: Pearly platy crystalline dmisteinbergite with dull white wairakite on matrix.
Location: Kurumazawa, Katashina, Gumma, Japan. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Dmitryivanovite Image

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Dmitryivanovite: CaAl2O4

Comments: Inclusion consisting mainly of grossite (Gr) intergrown with perovskite (Pv) and melilite (Mel) that is pure gehlenite (Ak0) with dmitryivanovite (CaAl2O4). (AmMin, v94:746).
Location: Northwest Africa 470 (NWA470) CH3 chondrite. Scale: See Image.
© American Mineralogist

Dmitryivanovite Image

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Dmitryivanovite: CaAl2O4

Comments: Inclusion consisting mainly of grossite (Gr) intergrown with perovskite (Pv) and melilite (Mel) that is pure gehlenite (Ak0) with dmitryivanovite (CaAl2O4). (AmMin, v94:746).
Location: Northwest Africa 470 (NWA470) CH3 chondrite. Scale: See Image.
© American Mineralogist

Dolerophanite Image

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Dolerophanite: Cu2(SO4)O  
Chalcanthite: CuSO4·5(H2O)  
Fedotovite: K2Cu++3(SO4)3O

Comments: Brown crystals of dolerophanite with blue chalcanthite and green fedotovite.
Location: Great Fissure (Main Fracture) eruption, Tolbachik volcano, Kamchatka Oblast', Far-Eastern Region, Russia. Scale: Picture size 3 mm.
© Thomas Witzke / Abraxas-Verlag

Dolerophanite Image

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Dolerophanite: Cu2(SO4)O  
Chalcanthite: CuSO4·5(H2O)  
Fedotovite: K2Cu++3(SO4)3O

Comments: Brown crystals of dolerophanite with blue chalcanthite and green fedotovite.
Location: Great Fissure (Main Fracture) eruption, Tolbachik volcano, Kamchatka Oblast', Far-Eastern Region, Russia. Scale: Picture size 3 mm.
© Thomas Witzke / Abraxas-Verlag

Dollaseite-(Ce) Image

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Dollaseite-(Ce): CaCeMg2AlSi3O11(OH,F)2

Comments: Glassy brown crystalline grains of dollaseite-(Ce) in matrix.
Location: Ostanmossagruvan, Norberg, Sweden. Scale: Grain size 1 mm.
© Tom Loomis / Dakota Matrix

Dollaseite-(Ce) Image

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Dollaseite-(Ce): CaCeMg2AlSi3O11(OH,F)2

Comments: Glassy brown crystalline grains of dollaseite-(Ce) in matrix.
Location: Ostanmossagruvan, Norberg, Sweden. Scale: Grain size 1 mm.
© Tom Loomis / Dakota Matrix

Dolomite Image

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Dolomite: CaMg(CO3)2

Comments: Pink rhombohedral crystals of dolomite on matrix.
Location: Eugui, Navarra Province, Navarra, Spain. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Dolomite Image

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Dolomite: CaMg(CO3)2

Comments: Pink rhombohedral crystals of dolomite on matrix.
Location: Eugui, Navarra Province, Navarra, Spain. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Doloresite Image

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Doloresite: H8V++++6O16

Comments: black radiating doloresite and crystalline doloresite with white calcite.
Location: Grants, Valencia County, New Mexico, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Doloresite Image

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Doloresite: H8V++++6O16

Comments: black radiating doloresite and crystalline doloresite with white calcite.
Location: Grants, Valencia County, New Mexico, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Domeykite Image

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Domeykite: Cu3As

Comments: Metallic nugget of domeykite.
Location: Cashin Mine, Montrose County, Colorado, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Domeykite Image

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Domeykite: Cu3As

Comments: Metallic nugget of domeykite.
Location: Cashin Mine, Montrose County, Colorado, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Donathite Image

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Donathite: (Fe++,Mg)(Cr,Fe+++)2O4

Comments: Black granular donathite on iron.
Location: Hestmondo Island, Nordland, Norway. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Donathite Image

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Donathite: (Fe++,Mg)(Cr,Fe+++)2O4

Comments: Black granular donathite on iron.
Location: Hestmondo Island, Nordland, Norway. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Donbassite Image

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Donbassite: Al2[Al2.33][Si3AlO10](OH)8

Comments: Translucent white crystalline donbassite.
Location: Donetz Basin, Ukraine. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Donbassite Image

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Donbassite: Al2[Al2.33][Si3AlO10](OH)8

Comments: Translucent white crystalline donbassite.
Location: Donetz Basin, Ukraine. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Donharrisite Image

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Donharrisite: Ni8Hg3S9

Comments: BSE photomicrograph of donharrisite showing remnants of subhedral polydymite crystals. (CanMin, v27:257).
Location: Found on a museum specimen from the former Erasmus miue, Schwardsp mining district, Leogang, Salzburg Province, Austria. Scale: Scale Bar 20 µm.
© Canadian Mineralogist

Donharrisite Image

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Donharrisite: Ni8Hg3S9

Comments: BSE photomicrograph of donharrisite showing remnants of subhedral polydymite crystals. (CanMin, v27:257).
Location: Found on a museum specimen from the former Erasmus miue, Schwardsp mining district, Leogang, Salzburg Province, Austria. Scale: Scale Bar 20 µm.
© Canadian Mineralogist
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