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McDougall Minerals is based near famous Bancroft, Ontario, at the heart of one of the best mineral regions in Canada

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's Image Gallery With 4041 Images

Devilline Image

Images:

Devilline: CaCu4(SO4)2(OH)6·3(H2O)
Malachite: Cu2(CO3)(OH)2

Comments: Blue crystals of devilline on green, botryoidal malachite.
Location: Spania Dolina (Herrengrund), Slovakia. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Devilline Image

Images:

Devilline: CaCu4(SO4)2(OH)6·3(H2O)

Comments: Laminar crystals of blue devilline on matrix..
Location: Spania Dolina (ex-Herrengrund) Banská Bystrica Slovak Republic. Scale: Specimen size: 6.9 x 3.3 x 5.7 cm.
© Fabre Minerals

Dewindtite Image

Images:

Dewindtite: Pb3[H(UO2)3O2(PO4)2]2·12(H2O)

Comments: Yellow dewindtite exposed on fracture surface. Schumacher Collection.
Location: Les Bois-Noirs Mine, Loire, Rhône-Alpes, France. Scale: Picture size 5 mm.
© Paul M. Schumacher

Dewindtite Image

Images:

Dewindtite: Pb3[H(UO2)3O2(PO4)2]2·12(H2O)
Kivuite: (Th,Ca,Pb)H2(UO2)4(PO4)2(OH)8·7(H2O)

Comments: Pale yellow coatings of kivuite with yellowier dewindtite on pegmatite.
Location: Ruggles Mine, Grafton, Grafton County, New Hampshire, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Diaboleite Image

Images:

Diaboleite: Pb2CuCl2(OH)4

Comments: Coarsely crystalline, blue diaboleite.
Location: Mammoth Mine, Tiger, Arizona. USA. Scale: 2.8 x 2.5 cm.
© John Veevaert

Diaboleite Image

Images:

Diaboleite: Pb2CuCl2(OH)4
Yedlinite: Pb6CrCl6(O,OH)8

Comments: Minute cranberry-colored rounded yedlinite crystal with blue diaboleite on yellow-brown wulfenite.
Location: Mammoth Mine, Tiger, Pinal County, Arizona, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Diadochite Image

Images:

Diadochite: Fe+++2(PO4)(SO4)(OH)·6(H2O)

Comments: Brown balls of diadochite on matrix.
Location: Union Carbide mine, Garland County, Arkansas, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Diamond Image

Images:

Diamond: C

Comments: Single octahedral crystal of diamond.
Location: Ghana, Africa. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Diamond Image

Images:

Diamond: C

Comments: Translucent diamond penetration twin crystals.
Location: Mbuji-Mayi (Miba), Democratic Republic of the Congo (Zaire). Scale: 3.70 carats, 7x7x7 mm.
© John Betts - Fine Minerals

Diamond Image

Images:

Diamond: C

Comments: Photomicrographs (PPL) of numerous microdiamonds in Kumdy-Kol caboniferous dolomite marble (Elements v1, no 2).
Location: Kokchetav Massif, Kumdy-Kol ultra high pressure facies area, northern Kazakhstan. Scale: See Image.
© Elements Magazine

Diamond Image

Images:

Diamond: C
Yimengite: K(Cr,Ti,Fe,Mg)12O19

Comments: Birefringence image of diamond displaying the location of yimengite inclusions (1, 2 , 3, 4, and 5) along the different octahedral growth zones. (Lithos, v77:181).
Location: Sese kimberlite (50 km) south of Masvingo, Zimbabwe. Scale: See Image.
© Lithos

Diaoyudaoite Image

Images:

Diaoyudaoite: NaAl11O17

Comments: Dark green crystalline diaoyudaoite.
Location: Novosibirsk District, Siberia, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Diaphorite Image

Images:

Diaphorite: Pb2Ag3Sb3S8

Comments: Prismatic, striated, metallic diaphorite crystal on quartz.
Location: Morey, Nye County, Nevada, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Diaspore Image

Images:

Diaspore: AlO(OH)

Comments: Crystals of deep violet-colored diaspore exposed from numerous vugs.
Location: Saga Quarry, Oslo Region Norway. Scale: Crystal size 1 cm.
© John Veevaert

Dickinsonite Image

Images:

Dickinsonite: KNa4Ca(Mn++,Fe++)14Al(PO4)12(OH)2

Comments: Salmon-colored, crystalline dickinsonite.
Location: Branchville, Fairfield County, Connecticut, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Dickite Image

Images:

Dickite: Al2Si2O5(OH)4
Ankerite: Ca(Fe++,Mg,Mn)(CO3)2
Sphalerite: (Zn,Fe)S

Comments: White, rhombohedral crystals of ankerite and dark gray, metallic sphalerite on beige dickite.
Location: Prego mine, Kladno, Czech Rebublic. Scale: Picture size 2 cm.
© Dave Barthelmy

Dickite Image

Images:

Dickite: Al2Si2O5(OH)4

Comments: Porcelaneous pure white massive dickite.
Location: Beaver County, Utah, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Dickthomssenite Image

Images:

Dickthomssenite: Mg(V+++++2O6)·7(H2O)

Comments: Yellowish white, prismatic crystals of dickthomssenite on matrix.
Location: Firefly-Pigmay Mine, La Sal Quadrangle, San Juan Co., Utah, USA. Scale: Picture size 2 mm.
© Thomas Witzke / Abraxas-Verlag

Dickthomssenite Image

Images:

Dickthomssenite: Mg(V+++++2O6)·7(H2O)

Comments: Yellowish prismatic-looking, radial aggregates of dickthomssenite forming "balls" to 2mm on matrix.
Location: Firefly-Pigmy mine, San Juan Co., Utah, USA. Scale: Picture size 5 mm.
© Tom Loomis / Dakota Matrix

Dickthomssenite Image

Images:

Dickthomssenite: Mg(V+++++2O6)·7(H2O)

Comments: White, translucent balls of fiberous aggregates of dickthomssenite on matrix.
Location: Vanadium Queen Mine, Paradox District, La Sal Area, San Juan County, Utah, USA. Scale: See Image.
© Jeff Weissman / Photographic Guide to Mineral Species

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