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.
Kerstenite: PbSeO4 (?) Clinochalcomenite: CuSeO3·2(H2O) Krutaite: CuSe2
Comments: Tan opaque fibrous kerstenite with possible blue clinochalcomenite on dark krutaite. Location: Mina El Dragon, Potosi, Bolivia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Khademite: Al(SO4)F·5(H2O)
Comments: Pale blue botryoidal khademite on matrix. Location: Bergmann Liegendes, Rammelsberg, Harz Mountains, Niedersachsen, Germany. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Kieserite: MgSO4·(H2O)
Comments: Translucent crystalline mass of kieserite with white alteration products. Location: Stassfurt, Sachsen-Anhalt, Germany. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Kintoreite: PbFe+++3(PO4)2(OH,H2O)6
Comments: Yellow rounded crystal grains of kintoreite on limonite. Location: Kintore Open Cut, Broken Hill, New South Wales, Australia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Kipushite: (Cu,Zn)5Zn(PO4)2(OH)6·(H2O)
Comments: Prismatic emerald green microcrystals of kipushite on quartz. Location: Snowshoe Claim, near Battle Mountain, Lander County, Nevada, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Kirschsteinite: CaFe++SiO4
Comments: Grayish green crystalline massive kirschsteinite. Location: Mazarron, Murcia, Spain. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Kivuite: (Th,Ca,Pb)H2(UO2)4(PO4)2(OH)8·7(H2O) Dewindtite: Pb3[H(UO2)3O2(PO4)2]2·12(H2O)
Comments: Pale yellow coatings of kivuite with yellowier dewindtite on pegmatite. Location: Ruggles Mine, Grafton, Grafton County, New Hampshire, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Kladnoite: C6H4(CO)2NH
Comments: Glassy prismatic colorless kladnoite crystals on matrix. Location: Kladno, Stredocesky, Czech Republic. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Koashvite: Na6(Ca,Mn)(Ti,Fe)Si6O18·(H2O)
Comments: Brown translucent crystalline fragment of koashvite. Location: Mount Koashva, Khibiny Massive, Kola Peninsula, Murmansk District, Russia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Kobellite: Pb22Cu4(Bi,Sb)30S69
Comments: Dark gray metallic crystalline kobellite with quartz. Location: Crabtree Quarry, Raleigh, Wake County, North Carolina, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species