Yanomamite

Comments: Gray-blue waxy yanomamite coatings on quartz.
Location: Mangabeira Tin Deposit, Goias, Brazil. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Yarrowite   Spionkopite

Comments: Blue-black metallic granular spionkopite, intermixed with yarrowite altering, with quartz.
Location: Yarrow Creek, Alberta, Canada. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Yarrowite   Spionkopite

Comments: Blue-gray metallic yarrowite grains in granular quartz rock with spionkopite.
Location: Yarrow Creek, Alberta, Canada. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Yecoraite

Comments: Tan to reddish brown resinous yecoraite coatings on quartz.
Location: Marie Elena Mine, Yecora, Sonora, Mexico. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Yedlinite   Diaboleite

Comments: Minute cranberry-colored rounded yedlinite crystal with blue diaboleite on yellow-brown wulfenite.
Location: Mammoth Mine, Tiger, Pinal County, Arizona, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Yeelimite   Hydroxylellestadite

Comments: Ye'elimite and hydroxylellestadite intimately intergrown as a brownish aggregate in massive anhydrite.
Location: Ronneburg U deposit, Gera district, Thuringia, Germany. Scale: Picture size 6 mm.
© Thomas Witzke / Abraxas-Verlag

Yingjiangite

Comments: Thin coating of yellow yingjiangite on matrix.
Location: Kladaske Mine, Erzgeborge, Czech Republi. Scale: Picture size 1.5 cm.
© John Veevaert

Yoderite

Comments: Dark bluish-black prismatic yoderite in quartz.
Location: Mautia Hill, Dodoma, Tanzania. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Yofortierite

Comments: Radial spray of yofortierite in matrix.
Location: Mt. St. Hilaire, Quebec, Canada. Scale: Picture size 1.5 cm.
© John Veevaert

Yoshimuraite

Comments: Translucent, brown yoshimuraite microcrystal.
Location: Toguchi Mine, Shidara, Kitashidara-Gun, Aichi, Japan. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Yttrotantalite-(Y)

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

Yttrotungstite-(Y)

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

Yugawaralite

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

Yugawaralite

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.
© Minernet

Yukonite

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

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

Yvonite

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