's Image Gallery

Kelyanite: (Hg+2)6(SbO6)BrCl2

Comments: B&W BSE image of an epoxy grain mount of kelyanite (1) and calomel (2) fragment.
Location: Kelyan Sb-Hg mine, Buryatia, Siberia, Russia. Scale: See Image.
© Diederik Visser

Kemmlitzite: (Sr,Ce)Al3(AsO4)(SO4)(OH)6

Comments: Tan granular kemmlitzite in sand.
Location: Kemmlitz Deposit, Oschatz, Sachsen, Germany. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Kenhsuite: Hg3S2Cl2

Comments: Yellow crystalline kenhsuite on montmorillonite matrix (light sensitive).
Location: McDermitt Mine, Humboldt County, Nevada, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Kentbrooksite: (Na,REE)15(Ca,REE)6Mn++Zr3NbSi25O74F2·2(H2O)

Comments: Orange translucent crystals of kentbrooksite frozen in syenite rock.
Location: Mount Alluiav, Lovozero Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Kentrolite: Pb2Mn+++2Si2O9

Comments: Brownish red grains of kentrolite in matrix.
Location: Langban mine, Varmland, Sweden. Scale: Picture size 5 mm.
© Tom Loomis / Dakota Matrix

Kenyaite: Na2Si22O41(OH)8·6(H2O)

Comments: Compact granular massive kenyaite possibly with other phases.
Location: Lake Magadi, Rift Valley Province, Kenya. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Kermesite: Sb2S2O

Comments: Reddish brown radiating spray of kermesite crystals on matrix.
Location: Pezinok (Pernek), near Bratislava, Solvakia. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Kermesite: Sb2S2O  
Paakkonenite: Sb2AsS2

Comments: Much of the matrix is the gray metallic paakkonenite with red crystals of kermesite and minute yellow crystals of valentinite.
Location: Cai' ao mine, Danfong Co., Shaanxi Prov., China. Scale: 3x2x2cm.
© Tom Loomis / Dakota Matrix

Kernite: Na2B4O6(OH)2·3(H2O)

Comments: Translucent kernite cleavage prism with white superficial dehydration coating.
Location: Pacific Coast Boron Mine, Boron, Kern County, California, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

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

Kesterite: Cu2(Zn,Fe)SnS4  
Mushistonite: (Cu,Zn,Fe)Sn++++(OH)6

Comments: Sharp, kesterite crystal, greenish in color due to a mushistonite coating with clear, prismatic beryl crystals.
Location: Xue Bao Diang Mountains, north of Pingwu, Sichuan Province, China. Scale: Crystal size 1 cm.
© Dan Weinrich

Kettnerite: CaBi(CO3)OF

Comments: Brown crystals of kettnerite.
Location: Shaft 250, Schlema-Hartenstein area, Erzgebirge, Saxony, Germany. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Keyite: Cu++3(Zn,Cu)4Cd2(AsO4)6·2(H2O)

Comments: Brilliant blue keyite crystals on a matrix of white, metallic suflide-arsenide ore.
Location: Tsumeb, Namibia. Scale: 0.9 x 0.7 x 0.7 cm.
© Rob Lavinsky

Keystoneite: Mg0.5[Ni++Fe++(TeO3)3]·4.5(H2O)

Comments: Yellow, feathery keystoneite on quartz.
Location: Mcalpine Mine, Moccasin, Tuolumne Co., California, USA. Scale: Picture size 2 mm.
© Thomas Witzke / Abraxas-Verlag

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

Khaidarkanite: Na0.34Cu4Al3(OH)14F3·2(H2O)

Comments: Sky blue acicular radial sprays of khaidarkanite.
Location: Khaidarkan, Kyrgizia. Scale: Crystal size 1 mm.
© Tom Loomis / Dakota Matrix

Khamrabaevite: (Ti,V,Fe)C  
Tistarite: Ti2O3

Comments: BSE image showing one tistarite (Ti2O3) grain along with khamrabaevite (TiC) and corundum. The cross marks where the electron back-scattered diffraction pattern (shown in Fig. 4) was collected. (AmMin, v94:841.
Location: From inside a chondrule from the Allende meteorite. Scale: See Image.
© American Mineralogist

Khanneshite: (NaCa)3(Ba,Sr,Ce,Ca)3(CO3)5

Comments: Vitreous orange massive khanneshite on single grain.
Location: Tuliylukht Bay, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia. Scale: See Image.
© Rruff Database

Kharaelakhite: (Pt,Cu,Pb,Fe,Ni)9S8

Comments: B&W BSE polished section image of a kharaelakhite (Xar) reaction rim on cooperate (Cup) and braggite (Br).
Location: Komsolmol'skii mine, Talnakh Cu-Ni deposit, Norilsk district, Krasnoyarsk Territory, Siberia, Russia. Scale: Scale bar 20 µm.
© Diederik Visser

Khatyrkite: (Cu,Zn)Al2

Comments: Left: Black khatyrkite with spinel, olivine and augite (whitish material). Right: High-resolution image (collection through a transmission electron microscope) of a region of about 15 nanometers showing 5 fold symmetry.
Location: Khatirskii ultramafic zone of the Koryak-Kamchata fold area, Koryak Mountains, Russia.. Scale: Not Given.
© Museum of Natural History