Mineral Specimen Images (D)

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

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: 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

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: 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: Al2Si2O5(OH)4

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

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: 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: 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: 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: 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: 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

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: 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

Dienerite: Ni3As  
Nickelskutterudite: (Ni,Co)As3-x

Comments: Gray, blocky crystals of nickel-skutterudite (chloanthite or dienerite) with minor yellow pyrite.
Location: Gowganda, Ontario, Canada. Scale: Crystal size 3 mm.
© Tom Loomis / Dakota Matrix

Dienerite: Ni3As  
Nickelskutterudite: (Ni,Co)As3-x

Comments: Aggregate of silver-gray nickelskutterudite cubes, some tarnished to a brassy color. Dienerite is now considered to be nickelskutterudite.
Location: Hasserode, Harz, Germany. Scale: See Image.
© Rruff Database

Dienerite: Ni3As  
Nickelskutterudite: (Ni,Co)As3-x

Comments: Aggregate of silver-gray nickelskutterudite cubes, some tarnished to a brassy color. Dienerite is now considered to be nickelskutterudite.
Location: Hasserode, Harz, Germany. Scale: See Image.
© Rruff Database

Dienerite: Ni3As  
Nickelskutterudite: (Ni,Co)As3-x

Comments: Gray, blocky crystals of nickel-skutterudite (chloanthite or dienerite) with minor yellow pyrite.
Location: Gowganda, Ontario, Canada. Scale: Crystal size 3 mm.
© Tom Loomis / Dakota Matrix

Dietrichite: (Zn,Fe++,Mn)Al2(SO4)4·22(H2O)

Comments: Pale beige fibrous dietrichite.
Location: Baia Sprie, Transylvania, Maramures, Romania. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Dietrichite: (Zn,Fe++,Mn)Al2(SO4)4·22(H2O)

Comments: Pale beige fibrous dietrichite.
Location: Baia Sprie, Transylvania, Maramures, Romania. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species