Click on thumbnails for a larger image. Please be patient since some of these pages of thumbnail images take some time to load. These mineral photos are copyrighted by their owners and may not be used without permission.
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
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
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
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
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
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