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