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Kornerupine: (Mg,Fe++)4Al6(SiO4,BO4)5(O,OH)2
Comments: Greenish gray mottled crystal prism of kornerupine. Location: Western Hart's Range, Northern Territory, Australia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Korobitsynite: Na3(Ti,Nb)2[Si4O12](OH,O)2·3-4(H2O)
Comments: Colorless prismatic crystals of korobitsynite. Location: Alluaiv Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia. Scale: Picture size 2 mm. © Thomas Witzke / Abraxas-Verlag
Korshunovskite: Mg2Cl(OH)3·3.5-4(H2O)
Comments: White fibrous korshunovskite crystals. Location: Korshunovskoye skarn Fe Deposit, Irkutsk, Irkutskaya Oblast', Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia. Scale: Picture size 4 mm. © Thomas Witzke / Abraxas-Verlag
Korzhinskite: CaB2O4·(H2O)
Comments: Translucent fragment of korzhinskite. Location: Novofrolovskoye, Sverdlovsk District, Northern Urals, Russia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Kosmochlor: NaCr+++Si2O6
Comments: Green resinous massive kosmochlor, variety ureyite, in serpentinite. Location: Myanmar. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Kosnarite: KZr++++2(PO4)3
Comments: Transparent crystals of kosnarite on matrix. Location: Itinga Mine, Minas Gerais, Brazil. Scale: Crystal size 2 mm. © John Veevaert
Comments: Pale bluish crystals of kosnarite in matrix. Location: Mt Mica mine, Paris, Oxford Co., Maine, USA. Scale: Picture size 1.5 mm. © Thomas Witzke / Abraxas-Verlag
Kosnarite: KZr++++2(PO4)3 Zanazziite: Ca2(Mg,Fe++)(Mg,Fe++,Al,Mn,Fe+++)4Be4(PO4)6(OH)4·6(H2O)
Comments: Beige crystals of kosnarite with pinkish, radial aggregates of zanazziite on whte albite matrix. Location: Jenipapo, Itinga, Minas Gerais, Brazil. Scale: Picture size 6 cm. © Fabre Minerals
Kostovite: CuAuTe4
Comments: B&W, oil immersion, XPL image of a twinned grain of kostovite surrounded by native tellurium (Te), chalcopyrite (Cp), Tennantite (Tn) and barite (Ba). (AmMin, v51:29). Location: Chelopech copper deposit, Bulgaria. Scale: Magnification 1,000 X. © American Mineralogist
Comments: Dark gray metallic fragment of kostovite embedded in epoxy. Location: Chelopech Mine, Chelopech Obshchina, Balkan Mts (Stara-Planina Mts), Sofiya (Sofia) Oblast, Bulgaria. Scale: See Image. © Rruff Database