Mineral Specimen Images (K)

Kaatialaite: Fe+++[H2As+++++O4]3·5-5.5(H2O)

Comments: White kaatialaite with arsenolite on native arsenic.
Location: Shaft 371, Schlema-Hartenstein area, Erzgebirge, Saxony, Germany. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Kaersutite: NaCa2(Mg4Ti)Si6Al2O23(OH)2

Comments: Dark greenish-brown prismatic kaersutite crystals in matrix.
Location: Nugssuaq, Umanak, Greenland. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Kafehydrocyanite: K4Fe++(CN)6·3(H2O)

Comments: Micro platy crystal of kafehydrocyanite.
Location: Medvezhii Log, East Sayan Mountains, Krasnoyarsk Territory, Siberia, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Kainite: MgSO4·KCl·3(H2O)  
Szaibelyite: MgBO2(OH)

Comments: pale violet granular kainite intermixed with white ascharite (szaibelyite).
Location: Havesa, Empelde, Hannover, Niedersachsen, Germany. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Kainosite-(Y): Ca2(Y,Ce)2Si4O12(CO3)·(H2O)

Comments: Group of reddish brown kainosite-(Y) crystals on fluorite.
Location: Seula mine (ex Montecatini quarry), Mount Camoscio, Oltrefiume, Baveno, Verbano-Cusio-Ossola Province, Piedmont, Italy. Scale: Crystal Size 1.6 mm.
© Sergio Varvello / Mineral Service

Kainosite-(Y): Ca2(Y,Ce)2Si4O12(CO3)·(H2O)  
Ferriallanite-(Ce): CaCe(Fe+++,Fe++,Al)3[SiO4][Si2O7]O(OH)

Comments: Short prismatic black crystals of ferriallanite-(Ce) in white slightly weathered kainosite-(Y). Orange prisms are zircons of the first generation. Fragment of the holotype specimen.
Location: Neprimetnyi pegmatite, Mount Ulyn Khuren, Khaldzan Buragtag Massif, Altai Mts, Hovd Aimag (Khovd Aimag), Mongolia. Scale: Crystal Size 2 mm.
© Pavel M. Kartashov

Kalborsite: K6Al4Si6BO20(OH)4Cl

Comments: White crystals of kalborsite rimming eudialyte.
Location: Mt. Rasvumchorr, Chibiny, Kola Peninsula, Russia. Scale: FOV Est 4 mm.
© Diederik Visser

Kaliborite: KHMg2B12O16(OH)10·4(H2O)

Comments: Translucent colorless crystal of kaliborite.
Location: Lake Inder, Atyrau, Kazakhstan. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Kalicinite: KHCO3

Comments: Tan crystalline kalicinite on bobierrite.
Location: Khibiny Massif, Kola Peninsula, Russia. Scale: Picture Size 5 mm.
© Jeff Weissman / Photographic Guide to Mineral Species

Kalifersite: (K,Na)5Fe+++7Si20O50(OH)6·12(H2O)

Comments: Brownish-red crystalline granular aggregates of kalifersite in rock matrix composed of fibers to 5mm.
Location: Mt. Rasvumchorr, Khibiny massif, Kola Peninsula, Russia. Scale: Specimen size 3.5 x 2 x 1.5cm.
© Tom Loomis / Dakota Matrix

Kaliophilite: KAlSiO4  
Meionite: Ca4Al6Si6O24CO3

Comments: Tan to white fibrous kaliophilite crystal bundle with white translucent meionite on matrix.
Location: Mont Somma, Naples, Campania, Italy. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Kalipyrochlore: (H2O,Sr)(Nb,Ti)(O,OH)6·(H2O,K)

Comments: Opaque yellowish green to tan octahedral crystal of kalipyrochlore.
Location: Lueshe, Nord-Kivu, Zaire. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Kalsilite: KAlSiO4

Comments: Small, hair-like crystals of kalsilite on crystals of phlogopite and smaller crystals of analcime and fluorapatite.
Location: San Venanzo, Tern, Italy. Scale: Picture size 5 mm.
© John Veevaert

Kamacite: alpha-(Fe,Ni)  
Carlsbergite: CrN

Comments: Polished section showing a small light gray elongated inclusion of carlsbergite in massive kamacite.
Location: Kenton County meteorite, Kenton Co., Kentucky, USA. Scale: Picture size 0.08 mm.
© Thomas Witzke / Abraxas-Verlag

Kamacite: alpha-(Fe,Ni)  
Nickelphosphide: (Ni,Fe)3P

Comments: Small inclusion of nickelphosphide in massive kamacite.
Location: Kenton County meteorite, Kenton Co., Kentucky, USA. Scale: Picture size 0.09 mm.
© Thomas Witzke / Abraxas-Verlag

Kamacite: alpha-(Fe,Ni)  
Troilite: FeS  
Cohenite: (Fe,Ni,Co)3C  
Taenite: gamma-(Fe,Ni)

Comments: Brown masses of troilite, with white cohenite, in kamacite/taenite matrix, in meteorite (polished section).
Location: Meteor Crater, Canyon Diablo, Coconino County, Arizona, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Kamacite: alpha-(Fe,Ni)  
Taenite: gamma-(Fe,Ni)  
Troilite: FeS

Comments: Polished and acid etched slice, with crust, illustrating Widmanstaaten lines, with taenite darker areas between kamacite crystals, with tarnished troilite inclusions, in fine octahedrite meteorite.
Location: Gibeon Meteorite, found 1836, Great Namaqualand, Hardap, Namibia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Kamacite: alpha-(Fe,Ni)  
Melliniite: (Ni,Fe)4P

Comments: Reflected-light image displaying an anhedral fragment of creamy-yellowish melliniite(1) associated with kamacite (2). AmMin, v91, p453.
Location: Northwest Africa 1054 acapulcoite. Scale: See Image.
© American Mineralogist

Kamaishilite: Ca2Al2SiO6(OH)2

Comments: Colorless crystalline massive kamaishilite.
Location: Kamaishi mine, Iwate Prefecture, Tohoku Region, Honshu Island, Japan. Scale: See Image.
© Rruff Database

Kambaldaite: NaNi4(CO3)3(OH)3·3(H2O)

Comments: Light green kambaldaite blebs and crusts.
Location: Kambalda Nickel deposit, Kambalda, WA, Australia. Scale: Picture size 3 mm.
© Thomas Witzke / Abraxas-Verlag