's Image Gallery

Dovyrenite: Ca6Zr[Si2O7]2(OH)4

Comments: Dovyrenite crystal with preserved orthorhombic prism {0kl}. Abbrev: dovyrenite (Dov), vesuvianite (Ves). (Mineralogia Polonica, v38: no 1, p19).
Location: Dovyren Bald Mountain (Ioko-Dovyren layered massif), Siberia, Russia.. Scale: See Image.
© Mineralogia Polonica

Doyleite: Al(OH)3  
Gibbsite: Al(OH)3

Comments: Botryoidal spheres of doyleite growing along with its dimorph gibbsite. Analysis shows that doyleite dominates the mix. There are also minor canary yellow phlogopite crystals.
Location: Baoshan, Yunnan, China. Scale: 8 x 6.5 x 1.9 cm.
© Fabre Minerals

Dravite: NaMg3Al6(BO3)3Si6O18(OH)4

Comments: Doubly terminated dravite crystal on white mica shist matrix.
Location: Yinnietharra Station, Gascoyne, Western Australia. Scale: 4 x 4 x 2.9 cm.
© Fabre Minerals

Dravite: NaMg3Al6(BO3)3Si6O18(OH)4

Comments: Greenish-brown chrome-rich dravite tourmaline crystals up to 13 mm long with complex terminations. Fluoresces mildly under UV illumination.
Location: Shako Ranch, Mwatate Kabanga, Voi, Taita-Taveta district, Coast Province, Kenya. Scale: 14x13x10 mm.
© John Betts - Fine Minerals

Dresserite: BaAl2(CO3)2(OH)4·(H2O)

Comments: Radiating spheres of dresserite on matrix.
Location: Francon Quarry, Montreal, Quebec, Canada. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Dresserite: BaAl2(CO3)2(OH)4·(H2O)

Comments: White divergent sprays of fibrous crystals dresserite crystals.
Location: Francon quarry, Montréal, Jacques Cartier Co., Québec, Canada. Scale: Crystal size 5mm.
© Tom Loomis / Dakota Matrix

Drugmanite: Pb2(Fe+++,Al)H(PO4)2(OH)2

Comments: SEM view of a typical drugrnanite crystal.
Location: Found in silicified karst deposits, Richelle, 15 km north of Liege, Belgium. Scale: Picture Size 9 µm.
© Mineralogical Magazine

Drysdallite: Mo(Se,S)2

Comments: Metallic, black, submillimeter crystals of drysdallite approximatly 0.1 mm.
Location: Western Province, Zambia. Scale: Picthure Size 5 mm.
© Sandro Maggia/Minernet.it

Dufrenite: Fe++Fe+++4(PO4)3(OH)5·2(H2O)

Comments: Dark olive-greenish crystal of dufrenite on matrix.
Location: Rengersdorf, Görlitz, Oberlausitz, Saxony, Germany. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Dufrenoysite: Pb2As2S5

Comments: Black prismatic crystal of Dufrenoysite with brassy yellow pyrite on succroidal dolomite.
Location: Lengenbach quarry, Binntal, Valais, Switzerland. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Dufrenoysite: Pb2As2S5

Comments: Single, black dufrénoysite crystal in a vug in white dolomite.
Location: Lengenbach quarry, Binntal, Valais, Switzerland. Scale: Crystal size 2.5 mm.
© Walter Gabriel

Duftite-alpha: PbCu(AsO4)(OH)  
Mimetite: Pb5(AsO4)3Cl

Comments: Mimetite crystals are replaced by Duftite-alpha on a gossanous matrix.
Location: Mt. Bonnie Mine, Northern Territory, Australia. Scale: Crystal size to 3mm.
© John Veevaert

Duftite-beta: PbCu(AsO4)(OH)

Comments: Intensely green Duftite-beta on fluorescent calcite.
Location: Tsumeb mine, Tsumeb, Namibia. Scale: .
© Fabre Minerals

Duftite-beta: PbCu(AsO4)(OH)  
Jamesite: Pb2Zn2Fe+++5(AsO4)5O4

Comments: Reddish-brown bladed jamesite crystals overgrown with white dolomite and associated with dark green duftite.
Location: Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia. Scale: See Image.
© Rruff Database

Dugganite: Pb3Zn3Te(As,V,Si)2(O,OH)14

Comments: Green crystalline aggregate of dugganite.
Location: Tombstone, Cochise County, Arizona, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Dukeite: Bi+++24Cr++++++8O57(OH)6(H2O)3

Comments: SEM photomicrograph showing part of a dukeite sheave (AmMin, 85:1823).
Location: Found on a museum specimen labeled as originating from the São José Mine, Brejaúba, Minas Gerais, Brazil. Scale: See Image.
© American Mineralogist

Dumontite: Pb2(UO2)3O2(PO4)2·5(H2O)

Comments: Bright yellow acicular crystals of dumontite on matrix.
Location: Shinkolobwe mine, Tantara, Shaba, Democratic Republic of the Congo. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Dumortierite: Al6.5-7(BO3)(SiO4)3(O,OH)3

Comments: Blue dumortierite in matrix.
Location: Hartmannsdorf, Chemnitz, Saxony, Germany. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Dumortierite: Al6.5-7(BO3)(SiO4)3(O,OH)3

Comments: Divergent fans of acicular purple to lilac colored dumortierite crystals in white andalusite matrix.
Location: Dehesa, San Diego Co., California, USA. Scale: Crystal size 2.3cm.
© Tom Loomis / Dakota Matrix

Dumortierite: Al6.5-7(BO3)(SiO4)3(O,OH)3

Comments: Low-magnification, bright-field image showing dispersed dumortierite fibers extracted from rose quartz on a carbon film. (AmMin 87:270).
Location: Madagascar. Scale: See Image.
© American Mineralogist