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Kampfite: Ba12(Si11Al5)O31(CO3)8Cl5
Comments: Light, bluish-gray crystalline kampfite. Location: Esquire #1 Claim, Rush Creek, Fresno Co., California, USA. Scale: Picture size 4 mm. © Thomas Witzke / Abraxas-Verlag
Comments: Anthony Kampf, Curator and Section Head of the Mineral Sciences Section at the Los Angeles County Museum of Natural History and the person whom kampfite was named for, kindly provided the pronunciation of the mineral kampfite. Location: Tucson Convention Center, 50th Tucson Gem and Mineral Show, February 12, 2004. Scale: NA. © Dave Barthelmy
Kamphaugite-(Y): (Ca1.84REEx)(Y1.46REE0.54-x)(CO3)4(OH)1.65·2(H2O)
Comments: Small white crystals of kamphaugite-(Y). Location: Tørdal (Hjøndalen), Telemark, Norway. Scale: Picture size 3 mm. © Thomas Witzke / Abraxas-Verlag
Kanemite: NaHSi2O5·3(H2O)
Comments: Yellowish white translucent micro spherical aggregate of kanemite. Location: Kanem, Chad. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Kankite: Fe+++AsO4·3.5(H2O)
Comments: Greenish botryoidal aggregates of kankite. Location: Reiche Zeche Mine, Freiberg, Freiberg District, Erzgebirge, Saxony, Germany. Scale: Picture size 4 mm. © Thomas Witzke / Abraxas-Verlag
Kanoite: (Mn++,Mg)2Si2O6
Comments: Brown, prismatic crystals of kanoite in matrix. Location: Tatehira, Oshima Peninsula, Hokkaido, Japan. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Kanonaite: (Mn+++,Al)AlSiO5
Comments: Dark greenish black microcrystal of kanonaite in matrix. Location: Le Coreaux, near Salmchateau, Luxembourg, Belgium. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Kaolinite: Al2Si2O5(OH)4
Comments: Authigenic kaolinite plates covering a quartz grain overgrown with authigenic quartz. SEM image of a core sample. Location: Unknown. Scale: Picture size 50 µ-m. © OMNI Laboratories, Inc
Kaolinite: Al2Si2O5(OH)4 Ammonioalunite: (NH4)Al3(SO4)2(OH)6
Comments: White chalky ammonioalunite on darker kaolinite. Location: Schoeller Mine, Kladno, Stredocesky, Czech Republic. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Kaolinite: Al2Si2O5(OH)4 Pianlinite:
Comments: Off-white colored minute pianlinite (kaolinite) fragment. Location: Pianling, China. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Kapustinite: Na5.5Mn0.25ZrSi6O16(OH)2
Comments: Purple-red kapustinite partly covered with white powdery newly formed thermonatrite with violet ussingite. Location: Palitra Pegmatite, Kedykverpakhk Mt., Lovozero, Kola, Russia. Scale: Specimen Size 0.3x1.2 cm. © Diederik Visser
Karchevskyite: [Mg18Al9(OH)54][Sr2(CO3,PO4)9(H2O,H3O)11]
Comments: Colorless hexagonal plates of karchevskyite, co-type material, associated with phlogopite, dolomite, pyrite, and magnetite. Location: Zheleznyi mine, Kovdor Massif, Kola Peninsula, Russia. Scale: See Image. © Rruff Database
Karelianite: V2O3
Comments: Dark bluish-black granular karelianite. Location: Outokumpu, Pohjois-Karjala, Finland. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Karibibite: Fe+++2As+++4(O,OH)9
Comments: Orange yellow, radial sprays of karibibite on löllingite to 0.75mm. Location: Galileia, Minas Gerais, Brazil. Scale: picture size 5 mm. © Tom Loomis / Dakota Matrix
Karlite: (Mg,Al)6(BO3)3(OH,Cl)4
Comments: Pale lemon yellow colored translucent crystalline fragment of karlite. Location: Schlegeistal, Zillertaler Alpen, Tirol, Austria. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Karnasurtite-(Ce): (Ce,La,Th)(Ti,Nb)(Al,Fe+++)(Si,P)2O7(OH)4·3(H2O) (?)
Comments: Tabular, hexagonal crystals of light-yellow karnasurtite-(Ce) associated with light-lilac porcelaneous polylithionite and black dendrites of a cryptomelane group mineral. Location: Hackmanite Stock (Pegmatite No. 62), Karnasurt Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia. Scale: Specimen Size is 5.5x5x2 cm. © Pavel M. Kartashov
Karpatite: C24H12
Comments: Pale greenish karpatite with minor red cinnabar. Location: 4th of July mine, New Idria district, San Benito Co., California, USA. Scale: Picture size 5 mm. © Thomas Witzke / Abraxas-Verlag
Comments: Flat lying sprays of fibrous crystals of yellow karpatite to 2.8 cm in length on siliceous jasperoid with drusy quartz. Lower image taken using SW UV light. Location: Los Picachos, near Picacho Peak, San Benito County, California, USA. Scale: 9.3 x 4.5 x 3.5 cm. © John Veevaert
Comments: Prismatic yellow karpatite (Ka) crystal on quartz (Qtz), cinnabar (Cin) and magnesite (Mgs).. Location: Pichacho Peak Area, San Benito County, California, USA.. Scale: See Image. © American Mineralogist
Karupmollerite-Ca: (Na,Ca,K)2Ca(Nb,Ti)4(Si4O12)2(O,OH)4·7(H2O)
Comments: Small white fragment of kaupmollerite-Ca in a geletin capsule. Location: Mellemelv, Ilimaussaq, Greenland. Scale: Capsule Size 1 cm. © Sergey Vasiliev / Systematic Mineralogy