Mineral Specimen Images (K)

Kinoite: Ca2Cu2Si3O8(OH)4

Comments: Kinoite crystals as single tabular or platy blue crystals to about 0.3mm and as fan-like sprays. The crystals exhibit striations, a key to distinguishing it from stringhamite.
Location: Christmas mine, Gila Co., Arizona, USA. Scale: Picture size 3 mm.
© Tom Loomis / Dakota Matrix

Kinoshitalite: (Ba,K)(Mg,Mn,Al)3Si2Al2O10(OH)2

Comments: Yellowish brown platy crystals of kinshitalite in granular matrix of grayish tephroite.
Location: Hokkejino, Kyoto Prefecture, Kinki Region, Honshu Island, Japan. Scale: See Image.
© Rruff Database

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

Kintoreite: PbFe+++3(PO4)2(OH,H2O)6  
Lusungite: (Sr,Pb)Fe+++3(PO4)2(OH)5·(H2O)

Comments: Greenish-yellow kintoreite crystals on limonite and or goethite. The specimen was originally labelled lusungite in the early 1990's and reinvestigation of the specimen showed it to be kintoreite.
Location: Kintore Open Cut, Broken Hill, NSW, Australia. Scale: Specimen Size 3x6 cm.
© Diederik Visser

Kipushite: (Cu,Zn)5Zn(PO4)2(OH)6·(H2O)

Comments: Green microcrystals of kipushite on matrix.
Location: Kipushi, Shaba, Zaire. Scale: 10x8x5 mm.
© Richard Dale / Dale Minerals

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

Kitaibelite: Ag10PbBi30S51  
Pavonite: (Ag,Cu)(Bi,Pb)3S5

Comments: Steel-gray metallic massive pavonite (kitaibelite is discredited as Pb-bearing pavonite).
Location: Near Charcas, San Luis Potosi, Mexico. Scale: See Image.
© Rruff Database

Kitkaite: NiTeSe  
Penroseite: (Ni,Co,Cu)Se2  
Sederholmite: NiSe

Comments: B&W polished section image showing kitkaite replacing calcite in penroseite, clausthalite and sederholmite. Note the absence of the clausthalite envelope around kitkaite..
Location: Valley of the Kitka river in Kuusamo, northeast Finland. (AmMin, v50:581). Scale: 100 X.
© American Mineralogist

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

Klebelsbergite: Sb+++4O4(OH)2(SO4)

Comments: Small, acicular sprays of klebelsbergite with yellow crystals of sulfur on stibnite.
Location: Pereta Mine, Grosseto Province, Tuscany, Italy. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Kleinite: Hg2N(Cl,SO4)·n(H2O)

Comments: Crystalline druse of bright canary yellow kleinite on matrix.
Location: McDermmitt, Humboldt County, Nevada. USA. Scale: Crystal size 1-2 mm.
© John Veevaert

Klockmannite: CuSe

Comments: Klockmannite intergrown with covellite on quartz.
Location: Lichtenberg Mine, Ronneburg U Deposit, Gera district, Thuringia, Germany. Scale: Picture size 7.5 mm.
© Thomas Witzke / Abraxas-Verlag

Klockmannite: CuSe  
Fischesserite: Ag3AuSe2

Comments: Pinkish-grey fischesserite (Fl) with fine-grained bluish-grey klockmannite (Kl) and grey clausthalite (Cl). Polished section from microprobe analysis in reflected light, parallel nicols.
Location: Predborice, Bohemia, Czech Republic. Scale: Picture size 0.7 mm.
© Thomas Witzke

Klyuchevskite: K3Cu3(Fe+++,Al)O2(SO4)4  
Klyuchevskite-Duplicate: K3Cu3Fe+++O2(SO4)4

Comments: Clusters of dark green radiating prismatic klyuchevskite crystals associated with langbeinite, co-type sample. Klyuchevskite-duplicate is the same mineral with different Dana numbers.
Location: Yadevitaya fumarole, Tolbachik volcano, Kamchatka Oblast', Far-Eastern Region, Russia. Scale: See Image.
© Rruff Database

Klyuchevskite-Duplicate: K3Cu3Fe+++O2(SO4)4  
Klyuchevskite: K3Cu3(Fe+++,Al)O2(SO4)4

Comments: Clusters of dark green radiating prismatic klyuchevskite crystals associated with langbeinite, co-type sample. Klyuchevskite-duplicate is the same mineral with different Dana numbers.
Location: Yadevitaya fumarole, Tolbachik volcano, Kamchatka Oblast', Far-Eastern Region, Russia. Scale: See Image.
© Rruff Database

Knasibfite: K3Na4[SiF6]3[BF4]

Comments: SEM image of knasibfite crystals (CanMin; v46:449).
Location: La Fossa crater, Vulcano Island, Aeolian Archipelago, Sicily, Italy. Scale: See Image.
© Canadian Mineralogist

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

Kobeite-(Y): (Y,U)(Ti,Nb)2(O,OH)6 (?)

Comments: Subparallel aggregate of black, tabular, euhedral kobeite-(Y) crystals in matrix.
Location: Ohro, Kobe, Kyoto, Japan. Scale: Picture size 5 mm.
© Paul M. Schumacher