Mineral Specimen Images (Z)

Zirkelite: (Ca,Th,Ce)Zr(Ti,Nb)2O7

Comments: Black, massive aggregate of zirkelite with minor brown biotite and a thin vein of white calcite.
Location: Palabora Open Pit mine, Loolekop, Phalaborwa, Limpopo Province, Transvaal, Republic of South Africa. Scale: Picture size 1.5 cm.
© Paul M. Schumacher

Zirsilite-(Ce): (Na,[ ])12(Ce, Na)3Ca6Mn3Zr3Nb(Si25O73)(OH)3(CO3)·H2O

Comments: Yellow masses of zirsilite-(Ce) intermixed with other eudialyte group (?) minerals.
Location: Darai-Pioz (Dara-i-Pioz; Dara-Pioz) Glacier, Alai (Alayskiy) Range, Tien Shan Mts, Region of Republican Subordination, Tajikistan. Scale: Picture Size 0.2 cm.
© Jeff Weissman / Photographic Guide to Mineral Species

Zirsinalite: Na6(Ca,Mn,Fe++)Zr[Si6O18]

Comments: Translucent pale olive-green-colored zirsinalite replacing reddish eudialyte.
Location: Khibiny Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Znucalite: CaZn11(UO2)(CO3)3(OH)20·4(H2O)

Comments: Cream-yellow botryoidal znucalite.
Location: St Christoph Mine, Bärenhecke, Glashütte, Erzgebirge, Saxony, Germany. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Znucalite: CaZn11(UO2)(CO3)3(OH)20·4(H2O)

Comments: Very pale bluish white, porcelaneous crust of znucalite on matrix.
Location: Mine dump near: Pribam, Bohemia, Czech Republic. Scale: Picture size 5 mm.
© Paul M. Schumacher

Zodacite: Ca4Mn++Fe+++4(PO4)6(OH)4·12(H2O)

Comments: SEM image of a divergent spray of zodacite crystals. (AmMin, v73:1179).
Location: Mangualde, Portugal. Scale: See Image.
© American Mineralogist

Zoisite: Ca2Al3(SiO4)3(OH) = Ca2AlAl2(SiO4)(Si2O7)O(OH)

Comments: Gem quality crystal of zoisite with the striking pleochroism displayed in three different views.
Location: Alchuri Village, Shigar Valley, north of Skardu, Baltistan, Pakistan. Scale: 1x1x3.8 cm.
© Dan Weinrich

Zoisite: Ca2Al3(SiO4)3(OH) = Ca2AlAl2(SiO4)(Si2O7)O(OH)

Comments: Dual views of a large crystal of blue-violet zoisite (var. tanzanite) showing the pleochroism.
Location: Merelani Hills, Umba Valley, Lelatema Mts., Arusha Region, Tanzania. Scale: 35 mm 42.32 ct.
© John Betts - Fine Minerals

Zoltaiite: BaV++++2V+++12Si2O27

Comments: B&W reflected-light photomicrograph showing zoltaiite grains (Z) in the type sample. AmMin v90, p1656.
Location: Eastern edge of the Shuswap metamorphic complex of British Columbia, Canada. Scale: See Image.
© American Mineralogist

Zorite: Na6Ti5[Si12O34](O,OH)5·11(H2O)

Comments: Pale pink translucent spherical zorite crystal aggregate on dark green aegirine.
Location: Lovozero Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Zunyite: Al13Si5O20(OH,F)18Cl

Comments: Octahedral crystals of zunyite to 5 mm on matrix.
Location: Quartzsite, Arizona. Scale: 5+ cm.
© John Veevaert

Zussmanite: K(Fe++,Mg,Mn)13[AlSi17O42](OH)14

Comments: Light to dark green crystals of zussmanite (.75 mm) embedded in schist..
Location: Longvale quarry, Mendocino Co., California, USA. Scale: Picture Size 2 cm.
© Tom Loomis / Dakota Matrix

Zvyagintsevite: Pd3Pb

Comments: Sharp cubic crystal of zvyagintsevite.
Location: Konder, Khabarovsk territories, Russian Far East, Russia. Scale: Crystal Size 0.5 x 0.5 x 0.2 cm.
© Rob Lavinsky

Zwieselite: (Fe++,Mn)2(PO4)F

Comments: Brown zwieselite in granite pegmatite.
Location: Sauberg Mine, Ehrenfriedersdorf, Erzgebirge, Saxony, Germany. Scale: Specimen size 9 mm.
© Thomas Witzke / Abraxas-Verlag

Zykaite: Fe+++4(AsO4)3(SO4)(OH)·15(H2O)  
Bukovskyite: Fe+++2(AsO4)(SO4)(OH)·7(H2O)

Comments: Pale beige acicular crystals of bukovskýite with white zykaite.
Location: Christbescherung Mine, Großvoigtsberg, Freiberg District, Erzgebirge, Saxony, Germany. Scale: Picture size 1.3 mm.
© Thomas Witzke / Abraxas-Verlag

Zykaite: Fe+++4(AsO4)3(SO4)(OH)·15(H2O)

Comments: Round aggregates of Zykaite.
Location: Reiche Zeche Mine, Freiberg, Freiberg District, Erzgebirge, Saxony, Germany. Scale: Specimen size 37 mm.
© Thomas Witzke / Abraxas-Verlag