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en:Wakefieldite-(Nd) Locality: Arase mine, Kami city, Kochi Prefecture, Japan Dimensions: 8 mm x 5 mm x 5 mm Description: A very small crust of wakefieldite-Nd on ore, obtained at the Minerant 2016 (mineral show of the Mineralogische Kring Antwerpen), from J Hyrsl. Mineral

Wakefieldite-(Nd)

wakefieldite-(Nd)

Formula
NdVO4
Mineral

Wakefieldite-(Y)

wakefieldite-(Y)

Formula
Y(VO4)
Mineral

Walentaite

walentaite

Formula
Fe³⁺3(P0.84As0.16O4)2(O,OH)6As³⁺2.56Ca0.42Na0.28Mn²⁺0.35Fe²⁺0.30O6.1(OH)0.9(H2O)0.9
Another closer view of the Walfordite (0.7 mm)laying on white Alunite. This xx shows an attractive cube modification resembling a sort of papillon shape. Extremely difficult to immortalize without combine ZM, nevertheless it gives a hint of how looks like the single xx. From Wendy pit, Tambo, El Indio deposit, Elqui Province, Coquimbo Region, Chile - Fov: 2x2 mm Mineral

Walfordite

walfordite

Formula
(Fe³⁺,Te6+)Te4+3O8
Mineral

Walkerite

walkerite

Formula
Ca16(Mg,Li,☐)2[B13O17(OH)12]4Cl6*28H2O
Mineral

Wallisite

wallisite

Formula
CuPbTlAs2S5
Orange brown microcrystals of the extremely rare Ca-Fe arsenate mineral wallkilldellite-(Fe) from the type locality in Roua mine (Daluis, Alpes-Maritimes, Provence-Alpes-Cote d'Azur, France), and one of the only 5 localities known worldwide. Much rarer than the Mn term, from the elusive type locality hidden in a canyon in the Southern French Alps. Ex Dr.Hartel collection, Ex Ch.Rewitzer collection. Mineral

Wallkilldellite

wallkilldellite

Formula
Ca2Mn²⁺3(AsO4)2(OH)4 * 9H2O
Orange brown microcrystals of the extremely rare Ca-Fe arsenate mineral wallkilldellite-(Fe) from the type locality in Roua mine (Daluis, Alpes-Maritimes, Provence-Alpes-Cote d'Azur, France), and one of the only 5 localities known worldwide. Much rarer than the Mn term, from the elusive type locality hidden in a canyon in the Southern French Alps. Ex Dr.Hartel collection, Ex Ch.Rewitzer collection. Mineral

Wallkilldellite-(Fe)

wallkilldellite-(Fe)

Formula
(Ca,Cu)4Fe²⁺6(AsO4,SiO4)4(OH,O)8 * 18H2O
Walpurgite Locality: Walpurgis Flacher vein, Weißer Hirsch Mine (Shaft 3), Neustädtel, Schneeberg District, Erzgebirge, Saxony, Germany (Locality at mindat.org) Size: 5.3 x 2.5 x 2.2 cm. From the type locality (1871), this is a particularly large crystal for the species, 7mm in size, and quite robust. Mineral

Walpurgite

walpurgite

Formula
(BiO)4(UO2)(AsO4)2·2H2O
(A) aggregate of Ba-minerals between large rock-forming minerals of paralava, Zuk Tamrur. Frame shows a fragment magnified in Figure 3B; (B) walstromite intergrowing with zadovite and gurimite is partially replaced by pliniusite. Kalsilite, in enclaves containing walstromite, is intensively substituted by a mixture of hydrosilicates and zeolites; (C) one of the biggest poikilitic grain of walstromite with kalsilite inclusions and Ti- andradite-flamite (partly altered) eutectoid intergrowth, Zuk Tamrur; (D) Euhedral zadovite crystals in walstromite, zadovite partially substituted for fluorapatite, Gurim Anticline. Adr: andradite, Ap: fluorapatite, Brt: baryte, Cus: cuspidine, Ghl: gehlenite, Grm: gurimite, His: hydrosilicate, Pls: pliniusite, Rnk: rankinite, Tnr: tenorite, Wls: walstromite, Zdv: zadovite, Mgf: magnesioferrite, Kls: kalsilite. The image is published in an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Mineral

Walstromite

walstromite

Formula
BaCa2(Si3O9)
Mineral

Walthierite

walthierite

Formula
Ba0.5Al3(SO4)2(OH)6
White microcrystals of rare organic mineral wampenite (C18H16) on fossil wood from the species type and only locality worldwide (Wampen, Thiersheim, Fichtelgebirge, Franconia, Bavaria, Germany). Ex. Erich Laskowski collection (USA). Mineral

Wampenite

wampenite

Formula
C18H16
Mineral

Wangdaodeite

wangdaodeite

Formula
FeTiO3
Mineral

Wangkuirenite

wangkuirenite

Formula
Pb3Cl2(SeO3)2
Mineral

Wangpuite

wangpuite

Formula
K3(PO4)(Mo12O36)
Mineral

Wangxibinite

wangxibinite

Formula
TiFe
Mineral

Wangyanite

wangyanite

Formula
PdNi8S8
Wardite Locality:Rapid Creek, Dawson Mining District, Yukon Territory, Canada Mineral

Wardite

wardite

Formula
NaAl3(PO4)2(OH)4·2H2O
Outstanding white acicular crystals of the extremely rare borate mineral wardsmithite from the type locality (Death Valley, California, United States of America) and one of the only 5 known localities worldwide. Mineral

Wardsmithite

wardsmithite

Formula
Ca5Mg[B4O7]6 * 30H2O
Warikahnite Locality: Tsumeb, Otjikoto (Oshikoto) Region, Namibia (Locality at mindat.org) Size: thumbnail, 0.6 x 0.4 x 0.1 cm Warikahnite A VERY RARE example of this rare arsenate known from just a handful of specimens! The piece has gemmy yellow crystals of exquisite form. Only a few specimens have turned up for sale in recent years, at any level, good or bad. Although it seems smallish, this is actually an excellent example of the species and highly aesthetic as well. Mineral

Warikahnite

warikahnite

Formula
Zn3(AsO4)2·2H2O
Mineral

Warkite

warkite

Formula
Ca2Sc6Al6O20
Warwickite (Field of view 3 mm) Locality: Nuestra Señora del Carmen Mines, La Celia, Jumilla, Murcia, Spain Original description: Brown Needles Warwickite on matrix; Photo and Collection Fernando Brederodes. Mineral

Warwickite

warwickite

Formula
(Mg,Ti,Fe,Cr,Al)2O(BO3)
Mineral

Wassonite

wassonite

Formula
TiS
Outstanding grey metallic crystal group of the extremely rare sulphosalt mineral watanabeite from the type locality in Teine mine (Teine Mine, Sapporo, Hokkaido Island, Japan) and only one of the few known localities worlwide. Analyzed specimen by SEM/EDS. Ex Vandenbroucke Museum collection from Waregem, Belgium. Mineral

Watanabeite

watanabeite

Formula
Cu4(As,Sb)2S5