Click on thumbnails for a larger image. Please be patient since some of these pages of thumbnail images take some time to load. These mineral photos are copyrighted by their owners and may not be used without permission.
Koritnigite: ZnHAsO4·(H2O)
Comments: Translucent nearly colorless fragment of koritnigite. Location: Tsumeb, Oshikoto, Namibia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Kornelite: Fe+++2(SO4)3·7(H2O)
Comments: Sulfate matrix with several 1 cm sprays of kornelite. This specimen has to be protected from air as it is readily soluble in water. Location: Rio Tinto Mine, Huelva, Spain. Scale: Picture size 1 cm. © John Veevaert
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: 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
Comments: Transparent crystals of kosnarite on matrix. Location: Itinga Mine, Minas Gerais, Brazil. Scale: Crystal size 2 mm. © John Veevaert
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
Kotoite: Mg3B2O6
Comments: White massive kotoite crystals. Location: Baita Mine (Rézbánya), Nucet, Bihor Co., Romania. Scale: Picture size 8 mm. © Thomas Witzke / Abraxas-Verlag
Kottigite: Zn3(AsO4)2·8(H2O)
Comments: Köttigite crystals on gossanous matrix up to 0.5 cm in length. Location: Oujela Mine, Mapimi, Durango, Mexico. Scale: Picture size 3 cm. © John Veevaert
Kotulskite: Pd(Te,Bi) Telluropalladinite: Pd9Te4 Keithconnite: Pd3-xTe(x=0.14 to 0.43)
Comments: Polyphase grain of (1) ferroan platinum corroded by (2) Pt(Fe,Cu) and overgrown by (5) telluropalladinite, an unknown (6) Pd-Te-Fe-Si-O phase, (7) Fe-hydroxide and (8) a Ca-Mn-Fe silicate with inclusions of (3) kotulskite and (4) keithconnite. (BGR). Location: Stream sediments of rivers in the vicinity of the original discovery of the Merensky Reef on the farm Maandagshoek close to Burgersfort in the Eastern Bushveld, South Africa.. Scale: See Image. © Federal Institute for Geosciences and Natural Resources
Koutekite: Cu5As2 Algodonite: Cu6As
Comments: Silvery metallic koutekite with darker gray algodonite. Location: Mohawk Mine, Keweenaw County, Michigan, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Kovdorskite: Mg5(PO4)2(CO3)(OH)2·4.5(H2O)
Comments: Gemmy crystal of icy blue kovdorskite. Location: Kheleznyi Mine, Kovdor, Kola Penisula, Russia. Scale: Crystal size 1 cm. © John Veevaert
Kozoite-(La): La(CO3)(OH) Kozoite-(Nd): (Nd,La,Sm,Pr)(CO3)(OH)
Comments: Backscatter electron image of polished section through a sperical aggregate showing the zonation form kosoite-(La) to kosolite-(Nd). (JMPS, v 98, p 138). Location: Cavity in alkaline basalt near Mitsukoshi, Saga Prefecture, Japan. Scale: See Image. © JMPS
Kozoite-(Nd): (Nd,La,Sm,Pr)(CO3)(OH)
Comments: White grain of kozoite-(Nd) in matrix. Location: Niikoba, Hizen-cho, Higashi-Matsuura-gun, Saga Prefecture, Kyushu Island, Japan. Scale: Picture size 6 mm. © Thomas Witzke / Abraxas-Verlag
Comments: Photomicrograph of the spherical aggregate composed of kosoite-(Nd). (JMPS, v 98, p 138). Location: Cavity in alkaline basalt near Mitsukoshi, Saga Prefecture, Japan. Scale: See Image. © JMPS