Mineral Specimen Images (W)

Weeksite: K2(UO2)2Si6O15·4(H2O)

Comments: Globular masses of yellow weeksite crystals with white aragonite on a sandstone matrix.
Location: Jackpile Mine, Laguna District, Cibola County, New Mexico, USA. Scale: Picture size 1 cm.
© Paul M. Schumacher

Wegscheiderite: Na5(CO3)(HCO3)3

Comments: Greasy pale pink translucent platy crystalline wegscheiderite in syenite rock.
Location: Mount Alluaiv, Lovozero Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Weibullite: Pb6Bi8(S,Se)18  
Nordstromite: Pb3CuBi7(S10Se4)

Comments: Fibrous, silvery crystals of nordstromite. Lacking a chemical analysis it is possible that the crystal is weibullite instead.
Location: Falu mine, Falun, Sweden. Scale: Crystal Size 1 mm.
© Tom Loomis / Dakota Matrix

Weilite: CaHAsO4

Comments: White, radial aggregates weilite on matrix.
Location: Schlema, Schlema-Hartenstein area, Erzgebirge, Saxony, Germany. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Weinebeneite: CaBe3(PO4)2(OH)2·5(H2O)

Comments: Colorless Weinebeneite on brown matrix.
Location: Koralpe Mts, Carinthia, Austria. Scale: Picture size 3 mm.
© Thomas Witzke / Abraxas-Verlag

Weissbergite: TlSbS2

Comments: A metallic grain of weissbergite in matrix.
Location: Lookout Pass, Tooele Co., Utah, USA. Scale: Grain size 0.75 mm.
© Tom Loomis / Dakota Matrix

Weissite: Cu1.9Te

Comments: Metallic, irregular masses of weissite in quartz, with green malachite.
Location: Winston, Sierra Co., New Mexico, USA. Scale: Picture Size 2.5 mm.
© Jeff Weissman / Photographic Guide to Mineral Species

Weloganite: Sr3Na2Zr(CO3)6·3(H2O)

Comments: Columnar aggregates of Weloganite crystals.
Location: Francon quarry, Montreal, Quebec, Canada. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Weloganite: Sr3Na2Zr(CO3)6·3(H2O)  
Hydrodresserite: BaAl2(CO3)2(OH)4·3(H2O)

Comments: White spherical aggregates of hydrodresserite with radiating structure with columnar weloganite.
Location: Francon Quarry, Montreal, Quebec, Canada. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Weloganite: Sr3Na2Zr(CO3)6·3(H2O)

Comments: Pseudo-hexagonal "stacked" plates of white weloganite with flat pedion termination.
Location: Francon quarry, Montréal, Jacques Cartier Co., Québec, Canada. Scale: Crystal size 3 mm.
© Tom Loomis / Dakota Matrix

Welshite: Ca4Mg9Sb3O4[Si6Be3AlFe2O36]

Comments: Deep red, prismatic crystal of welshite in matrix.
Location: Langban, Varmland, Sweden. Scale: Crystal size 1.5 mm.
© Tom Loomis / Dakota Matrix

Wendwilsonite: Ca2(Mg,Co)(AsO4)2·2(H2O)

Comments: Gemmy crystals of wendwilsonite to 4 mm.
Location: Bou Azzer, Anti-Atlas Mts., Morocco. Scale: Picture size .5 cm.
© John Veevaert

Wendwilsonite: Ca2(Mg,Co)(AsO4)2·2(H2O)  
Minrecordite: CaZn(CO3)2

Comments: Wendell Wilson, publisher, editor-in-chief of the Mineralogical Record, and the person whom wendwilsonite was named after, kindly provided the mineral name pronunciations for minrecordite and wendwilsonite.
Location: Tucson Convention Center, 50th Tucson Gem and Mineral Show, February 14, 2004. Scale: NA.
© Dave Barthelmy

Wenkite: Ba4Ca6(Si,Al)20O39(OH)2(SO4)3·n(H2O) (?)

Comments: Translucent nearly colorless wenkite crystal in vug.
Location: Garpenberg Mine, Kopparberg, Sweden. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Werdingite: (Mg,Fe)2Al14B4Si4O37

Comments: B&W PPL image of grandidierite-hercynite symplectite replacing werdingite (W), whereas adjacent kornerupine (K) appears unafected. (AmMin, v75:415).
Location: Granulite facies of the Namaqualand metamorphic complex at Bok se Puts, Namaqualand, South Africa. Scale: Picture Size 3 mm.
© American Mineralogist

Wermlandite: (Ca,Mg)Mg7(Al,Fe+++)2(SO4)2(OH)18·12(H2O)

Comments: Dark colored, hexagonal platelet of wermlandite on matrix.
Location: Langban, Varmland, Sweden. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Wesselsite: SrCu++Si4O10

Comments: Fragment of blue wesselsite.
Location: Wessels mine, Kalahari Mn Fields, Northern Cape Province, South Africa. Scale: Sample Size 0.5 mm.
© Tom Loomis / Dakota Matrix

Westerveldite: (Fe,Ni,Co)As

Comments: Silvery metallic westerveldite grains in syenite rock.
Location: Ilimaussaq, Greenland. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Wherryite: Pb7Cu2(SO4)4(SiO4)2(OH)2

Comments: Green, acicular wherryite crystals.
Location: Mammoth mine, Tiger, Pinal County, Arizona, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Whewellite: Ca(C2O4)·(H2O)

Comments: Colorless, twinned crystal of Whewellite.
Location: Burgk, near Dresden, Saxony, Germany. Scale: Crystal size 7 mm.
© Thomas Witzke / Abraxas-Verlag