Diederik Visser's Image Gallery

Tongxinite: Cu2Zn

Comments: Tiny nugget with sorosite in a geletin capsule.
Location: Newjansk, Ural, Russia. Scale: Not given.
© Diederik Visser

Tounkite: (Na,Ca,K)8Al6Si6O24(SO4)2Cl·(H2O)

Comments: Light yellow-green crystalline tounkite with dark lazurite in matrix.
Location: Malobystrinskoje, Baikal, Russia. Scale: Not Given.
© Diederik Visser

Tripuhyite: Fe++Sb+++++O4  
Squawcreekite: (Fe+++,Sb+++++,W++++++)O4·(H2O)

Comments: Micro red-orange squawcreekite crystals in matrix. The mineral is now considered to be a Zn-bearing variety of Tripuhyite.
Location: Squaw Creek Tin Mine, Catron County, New Mexico. Scale: Not Given.
© Diederik Visser

Tsumgallite: GaO(OH)

Comments: BSE image of an irregular patch of dark tsumgallite in complex ore.
Location: Tsumeb mine, Tsumeb, Namibia.. Scale: See Image.
© Diederik Visser

Urvantsevite: Pd(Bi,Pb)2

Comments: Epoxy grain mount of a fragment of urvantsevite (Urv).
Location: Talnakh Cu-Ni deposit, near noril'sk, Krasnoyarsk region, Russia. Scale: See Image.
© Diederik Visser

Usovite: Ba2CaMgAl2F14

Comments: B&W BSE image of a fragment of usovite (Us) and fluorite (Fl) in an epoxy grain mount section.
Location: Pravaya Noiba River (tributary if the Teya), northeastern Enisei Range, Krasnoyarsk region, Russia. Scale: See Image.
© Diederik Visser

Vanmeersscheite: U++++++(UO2)3(PO4)2(OH)6·4(H2O)  
Metavanmeersscheite: U++++++(UO2)3(PO4)2(OH)6·2(H2O)

Comments: Yellow coatings of vanmeersscheite on sandstone. Unless sealed in glass, all specimens should be considered to have become metavanmeersscheite.
Location: Cameron, Coconino Co., Arizona, USA. Scale: Sample Size 4 cm Glass Vial.
© Diederik Visser

Veatchite: Sr2B11O16(OH)5·(H2O)

Comments: Shiny colorless platy veatchite crystals on clay matrix.
Location: Tick Canyon, near Lange, Los Angeles Co., California, USA. Scale: Specimen Size 1.5x3.5 cm.
© Diederik Visser

Vergasovaite: Cu3O[(Mo,S)O4][SO4]

Comments: Green vergasovaite on matrix. Inset shows the sealed glass ampoule with the specimen inside to protect from deterioration.
Location: Northern Breakthrough, Tolbachik Volcano, Kamchatka, Russia. Scale: Specimen Size 1.5x1.5 cm.
© Diederik Visser

Vimsite: CaB2O2(OH)4

Comments: White to transparent vein of vimsite crystals in matrix.
Location: Solongo B Deposit, Buriatia Republic, Eastern Siberia Region, Russia. Scale: Picture Size 8 x 10 mm.
© Diederik Visser

Voloshinite: Rb(LiAl1.5[ ]0.5)(Al0.5Si3.5)O10F2

Comments: Lower BSE image shows irregular voloshinite grain (center 1) surrounded by albite (ALB), trilithionite (T), and pollucite (P).
Location: Vasin-yl'k Mt., Voroni Tundry, Kola Peninsula, Russia. Scale: See Images.
© Diederik Visser

Wallkilldellite: Ca4Mn++6As+++++4O16(OH)8·18(H2O)

Comments: Dark red to black tiny crystals in veins in matrix.
Location: Starlera Mine, Val Ferrera, Graubünden, Switzerland. Scale: Picture Size 1 x 1.5 cm.
© Diederik Visser

Yakhontovite: (Ca,K)0.5(Cu,Fe+++,Mg)2Si4O10(OH)2·3(H2O)

Comments: Green coating of yakhontovite in matrix.
Location: Granite Gap, Hidalgo Co., New Mexico, USA. Scale: Specimen Size 2x2.5 cm.
© Diederik Visser

Yuanfuliite: (Mg,Fe++)(Fe+++,Al,Mg,Ti,Fe++)(BO3)O

Comments: Black inclusions of yuanfuliite in matrix.
Location: Tayeznoye Deposit, 100 km S. of Aldan, Yakutia, Russia. Scale: Specimen Size 1.2x2.2 cm.
© Diederik Visser

Zeravshanite: Cs4Na2Zr3(Si18O45)(H2O)2

Comments: BSE image of irregular grains of zeravshanite (zerav), sogdianite (sog) and aegirite (aegi).
Location: Dara-i-Pioz, Tadjikistan. Scale: See Image.
© Diederik Visser

Zhonghuacerite-(Ce): Ba2Ce(CO3)3F  
Huanghoite-(Ce): BaCe(CO3)2F

Comments: Brown grains of zhonghuacerite-(Ce) in matrix. This type material may be Huanghoite-(Ce).
Location: Bayan Obo iron mine, Baotou, Inner Mongolia, China. Scale: Not Given.
© Diederik Visser

Zincgartrellite: Pb(Zn,Fe,Cu)2(AsO4)2(OH,H2O)2

Comments: Small yellow-green zincgartrellite crystals on chalcocite.
Location: Tsumeb, Namibia. Scale: Specimen Size 3x7 mm.
© Diederik Visser

Zirconolite-2M: CaZrTi2O7

Comments: Brown needles of zirconolite-2M in quartz.
Location: In den Dellen, Mendig, Laacher See, Eifel, Germany. Scale: Not given.
© Diederik Visser

Zirconolite-3O: (Ca,Fe,Y,Th)2Fe(Ti,Nb)3Zr2O7

Comments: Brown needles of zirconolite-3O in quartz matrix.
Location: In den Dellen, Mendig, Laacher See, Eifel, Germany. Scale: Specimen Size < 1x1 cm.
© Diederik Visser

Zirconolite-3T: CaZrTi2O7

Comments: Dark brown platy hexagonal zirconolite=3Tcrystals on sanidine.
Location: Castellaccio di Petrignano near Vetrella, Lazio,Viterbo, Italy. Scale: Specimen Size 3x4 cm.
© Diederik Visser