Mineral Specimen Images (Y)

Yttrocrasite-(Y): (Y,Th,Ca,U)(Ti,Fe+++)2(O,OH)6

Comments: Polished specimen image showing yellow-orange rhombic sections of prismatic yttrocrasite-(Y) crystals along the fissure in almost black chloritoid aggregate.
Location: Chudnoe Pd-Au deposit, Grubependity lake, Komi Republic, Northern Region, Russia. Scale: Picture Size 4x5 mm.
© Pavel M. Kartashov

Yttropyrochlore-(Y): (Y,Na,Ca,U)1-2(Nb,Ta,Ti)2(O,OH)7

Comments: Vitreous brown metamict yttropyrochlore-(Y).
Location: Alakurtti pegmatite, North Karelia, Murmanskaja Oblast', Northern Region, Russia. Scale: See Image.
© Rruff Database

Yttrotantalite-(Y): (Y,U,Fe++)(Ta,Nb)O4

Comments: Dark greenish-black crystal of Yttrotantalite-(Y).
Location: Ytterby, Resarö, Vaxholm, Stockholm, Sweden. Scale: Picture size 8 mm.
© Thomas Witzke / Abraxas-Verlag

Yttrotungstite-(Y): YW2O6(OH)3

Comments: Orange crystals of Yttrotungstite-(Y).
Location: Kramat Pulai mine, Kinta, Perak, Malaysia. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

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

Yugawaralite: CaAl2Si6O16·4(H2O)

Comments: Pearly translucent colorless yugawaralite microcrystals.
Location: Klif Hvalfjordur, Iceland. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Yugawaralite: CaAl2Si6O16·4(H2O)

Comments: Yugawaralite, in well developed vitreous crystals up to 1 cm. in a large vug on matix.
Location: Khandivaly Quarry, Maharastra, India. Scale: Picture size 2 cm.
© Sandro Maggia/Minernet.it

Yukonite: Ca7Fe+++11(AsO4)9O10·24.3(H2O)

Comments: dark red brown resinous yukonite on limonite.
Location: Venus Gold-Silver mine, Yukon Territory, Canada. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Yuksporite: (Sr,Ba)2K4(Ca,Na)14([ ],Mn,Fe){(Ti,Nb)4(O,OH)4[Si6O17]2[Si2O7]3}(H2O,OH)n, n~3

Comments: Opaque fibrous yuksporite aggregate.
Location: Mount Yukspor, Khibiny Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Yushkinite: V1-xS·n(Mg,Al)(OH)2

Comments: Veinlet of purple metallic yushkinite in white calcite.
Location: Yushkinite gorge, Yugorskii Peninsula, Polar Urals, Russia. Scale: Picture Size 3 mm.
© Jeff Weissman / Photographic Guide to Mineral Species

Yvonite: Cu(AsO3OH)·2(H2O)

Comments: Bluish green or turquoise-colored microcrystals of yvonite on metallic matrix of arsenopyrite & native bismuth.
Location: Salsigne mine, Carcassone, Aude, France. Scale: 2 cm.
© John Attard