's Image Gallery

Kashinite: (Ir,Rh)2S3  
Laurite: RuS2

Comments: Gray kashinite with darker gray laurite. Polished section (from microprobe analysis) in reflected light.
Location: Nizhne-Tagil'skoye (Mednorudyanskoye) Cu Deposit, Nizhnii Tagil, Sverdlovskaya Oblast', Urals Region, Russia. Scale: Picture size 0.2 mm.
© Thomas Witzke / Abraxas-Verlag

Kasolite: Pb(UO2)SiO4·(H2O)

Comments: Golden yellow crystals of kasolite.
Location: Shinkolobwe mine, Tatara, Shaba, Democratic Republic of the Congo. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Kasolite: Pb(UO2)SiO4·(H2O)

Comments: Bright yellow kasolite crystal "flowers" on matrix.
Location: Kambove, (Kakanda) Mine, Katanga District, Shaba (Katanga), Republic of the Congo, (Zaïre). Scale: Picture size 5 mm.
© Paul M. Schumacher

Kasolite: Pb(UO2)SiO4·(H2O)  
Sklodowskite: (H3O)2Mg(UO2)2(SiO4)2·4(H2O)

Comments: Greenish yellow, acicular sklodowskite crystals and yellow, bladed kasolite crystals.
Location: Kambove, (Kakanda) Mine, Katanga District, Shaba (Katanga), Republic of the Congo, (Zaïre). Scale: Picture size 1 cm.
© Paul M. Schumacher

Kassite: CaTi2O4(OH)2

Comments: SEM images of kassite, a) brownish- pink rosette on feldspar surface and b) yellow spherules on pectolite crystal. (AmMin, v71:1045).
Location: Diamond Jo quarry, Magnet Cove, Hot Spring County, Arkansas, USA. Scale: Scale Bars 0.1 mm.
© American Mineralogist

Kastningite: (Mn++,Fe++,Mg)Al2(PO4 )2(OH)2·8(H2O)

Comments: Colorless crystals of kastningite.
Location: Silbergrube Quarry, Waidhaus, Vohenstrauß, Oberpfalz, Bavaria, Germany. Scale: Picture size 1 mm.
© Thomas Witzke / Abraxas-Verlag

Katayamalite: (K,Na)Ca7Li3Ti2[Si6O18]2(OH,F)2

Comments: White katayamalite, in white albite, with brown sugilite. Inset image shows specimen under UV-SW light, albite (dull red), katayamalite (blue-white) and sugilite (non-fluorescent).
Location: Iwagi Island, Inland Sea (Setonaikai), Ehime Prefecture, Japan. Scale: Specimen Size 2.5 cm.
© Jeff Weissman / Photographic Guide to Mineral Species

Katoite: Ca3Al2(SiO4)3-x(OH)4x x=1.5-3

Comments: Pale yellow to colorless euhedral katoite crystals associated with dark brown andradite crystals.
Location: Wilui River, Russia. Scale: See Image.
© Rruff Database

Katophorite: Na(CaNa)Fe++4(Al,Fe+++)Si7AlO22(OH)2  
Yoshimuraite: (Ba,Sr)2(Mn,Fe)2(Ti,Fe)(Si2O7)2(PO4,SO4)(OH)

Comments: Dark green katophorite associated with yoshimuraite. Inset fragment shows the transparency of the katophorite.
Location: Toguchi mine, Shidara, Kitashidara-Gun, Aichi, Japan. Scale: See Image.
© Rruff Database

Katoptrite: (Mn,Mg)13(Al,Fe+++)4Sb+++++2Si2O28

Comments: Red-brown grains of katoptite in matrix.
Location: Jakobsberg, Nordmark, Sweden. Scale: Box Size 4x6 cm.
© Sonke Stolze / Systematic Minerals

Kawazulite: Bi2(Te,Se,S)3

Comments: Sparse tin-white metallic kawazulite vein in quartz.
Location: Lone Pine, New Mexico, USA. Scale: Specimen Size 2.5x4 cm.
© Diederik Visser

Kazakhstanite: Fe+++5V++++3V+++++12O39(OH)9·9(H2O)

Comments: Deep black sooty coatings of kazakhstanite on silicified rock.
Location: Gold Quarry Mine, Carlin Trend, Eureka County, Nevada, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Kazakovite: Na6Mn++TiSi6O18

Comments: Yellow brown transparent kazakovite grains in matrix.
Location: Mt. Rasvumchorr, Chibiny, Kola, Russia. Scale: Not Given.
© Diederik Visser

Keckite: Ca(Mn,Zn)2Fe+++3(PO4)4(OH)3·2(H2O)

Comments: Brown crystals of keckite on matrix.
Location: Hagendorf, Bavaria, Germany. Scale: .
© Lou Perloff / Photo Atlas of Minerals

Kegelite: Pb8Al4Si8O20(SO4)2(CO3)4(OH)8

Comments: Small, transparent pseudo-cubic kegelite crystals.
Location: Tsumbe, Namibia.. Scale: See Image.
© William Pinch

Keilite: (Fe,Mn,Mg,Ca,Cr)S

Comments: B&W polished section image (a) of keilite (Ke) with troilite/pyrrhotite (Tro/Pyr) and metal (FeNi); gray, mostly oval grains are enstatite (En) and somewhat darker interstices are feldspars (Pl). (AmMin, v92:206).
Location: Zak?odzie enstatite achondrite. Scale: See Image.
© American Mineralogist

Keithconnite: Pd3-xTe(x=0.14 to 0.43)  
Kotulskite: Pd(Te,Bi)  
Telluropalladinite: Pd9Te4

Comments: Polyphase grain of (1) ferroan platinum corroded by (2) Pt(Fe,Cu) and overgrown by (5) telluropalladinite, an unknown (6) Pd-Te-Fe-Si-O phase, (7) Fe-hydroxide and (8) a Ca-Mn-Fe silicate with inclusions of (3) kotulskite and (4) keithconnite. (BGR).
Location: Stream sediments of rivers in the vicinity of the original discovery of the Merensky Reef on the farm Maandagshoek close to Burgersfort in the Eastern Bushveld, South Africa.. Scale: See Image.
© Federal Institute for Geosciences and Natural Resources

Keiviite-(Yb): (Yb,Y)2Si2O7

Comments: White massive blebs of keiviite-(Yb) in blue-green fluorite.
Location: Mount Ploskaja, west Keivy, Kola, Russia. Scale: See Image.
© Rruff Database

Keldyshite: Na2-xHxZrSi2O7·n(H2O)

Comments: Gray-white chalk-like keldyshite in and on matrix.
Location: Langdalen, Vestfold, Norway. Scale: Specimen Size 5x7 cm.
© Diederik Visser

Kellyite: (Mn++,Mg,Al)3(Si,Al)2O5(OH)4

Comments: Light-yellow irregular to platy tablets of kellyite in matrix.
Location: Near Bald Knob, Alleghany County, North Carolina, USA. Scale: See Image.
© Rruff Database