Diederik Visser'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

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

Kimuraite-(Y): CaY2(CO3)4·6(H2O)

Comments: Tiny white kimuraite-(Y) crystals in fissures in basalt.
Location: Kirigo, Hizen-Cho, Higashi, Matsuura-Gun, Saga Pref., Japan. Scale: Picture size 2cm.
© Diederik Visser

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

Krutovite: NiAs2

Comments: Gray silivery metallic krutovite grains in matrix.
Location: Belorechensk, Krasnodarskij oblast, southeast of Krasnodar, Russia. Scale: Specimen Size 5x2 cm.
© Diederik Visser

Kudriavite: (Cd,Pb)Bi2S4

Comments: Tufts of gray metallic kudriavite crystals on matrix.
Location: Mutnovskyi Volcano, Kamchatka, Russia. Scale: Sample Size 5x5 mm.
© Diederik Visser

Kuzmenkoite-Mn: (K,Na)2(Mn,Fe)(Ti,Nb)4[Si4O12]2(OH)4·5(H2O)

Comments: Yellowish brown kuzmenkoite-Mn crystals on matrix, with smaller, more brown colored labuntsovite-Mn.
Location: Mnt Flora, Lovozero, Kola, Russia. Scale: Sample Size 2x3 cm.
© Diederik Visser

Laplandite-(Ce): Na4CeTiPSi7O22·5(H2O)

Comments: Grayish-white radial aggregates of laplandite-(Ce).
Location: Yubileinaya pegmatite, Karnasurt Mt, Lovozero Massif, Kola Peninsula, Russia. Scale: Picture Size 3 mm.
© Diederik Visser

Lavrentievite: Hg3S2(Cl,Br)2

Comments: Yellow - brown lavrentievite with red cinnabar crystals in matrix.
Location: Kadyrel'skoye Deposit, Tuva, Siberia, Russia. Scale: Not Given.
© Diederik Visser

Lepkhenelmite-Zn: Ba2Zn(Ti,Nb)4(Si4O12)2(O,OH)4·7(H2O)

Comments: B&W image of fragments of lepkhenelmite-Zn.
Location: Lepkhe-Nel'm Mt., Lovozero, Kola, Russia. Scale: See Image.
© Diederik Visser

Lokkaite-(Y): CaY4(CO3)7·9(H2O)

Comments: White coating of lokkaite-(Y) on matrix with hellandite and possible kainosite.
Location: Evans-Lou Quarry, Quebec, Canada. Scale: Specimen Size 3 x 5 cm.
© Diederik Visser

Loveringite: (Ca,Ce)(Ti,Fe+++,Cr,Mg)21O38

Comments: Small clusters of tiny (20 microns) black metallic acicular joveringite crystals in/on phlogopite.
Location: Jimbelana Dyke, Norseman, Western Australia, Australia. Scale: Specimen Size 2.5x4 cm.
© Diederik Visser

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

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

Magnesiozippeite: Mg(H2O)3.5(UO2)2(SO4)O2  
Marecottite: Mg3(H2O)18[(UO2)4O3(SO4)2]2·10(H2O)

Comments: Powdery and crystalline aggregates of red-brown marecottite and yellow magnesiozippeite on matrix.
Location: Svornost Mine, Jachymov, Bohemia, Czech Republic. Scale: Specimen Size 6.5x9 cm.
© Diederik Visser

Manganonordite-(Ce): Na3SrCeMn++Si6O17

Comments: Light brown radial aggregates of manganonordite-(Ce) in ussingite.
Location: Mt. Punkuruaiv, Lovozero, Kola Peninsula, Russia. Scale: Not Given.
© Diederik Visser

Marecottite: Mg3(H2O)18[(UO2)4O3(SO4)2]2·10(H2O)  
Magnesiozippeite: Mg(H2O)3.5(UO2)2(SO4)O2

Comments: Powdery and crystalline aggregates of red-brown marecottite and yellow magnesiozippeite on matrix.
Location: Svornost Mine, Jachymov, Bohemia, Czech Republic. Scale: Specimen Size 6.5x9 cm.
© Diederik Visser

Mayenite: Ca12Al14O33

Comments: Gray mayenite grains in matrix.
Location: Bellerberg, Eifel, Germany. Scale: Picture size 1 mm.
© Diederik Visser

Metavandendriesscheite: PbU7O22·n(H2O)(n<12)

Comments: Botryoidal crusts of orange metavandendriesscheite with red- to yellow-brown prismatic masyuite.
Location: Giftkiesstollen, Jachymov, Bohemia, Czech Republic. Scale: Not Given.
© Diederik Visser

Metavanmeersscheite: U++++++(UO2)3(PO4)2(OH)6·2(H2O)  
Vanmeersscheite: U++++++(UO2)3(PO4)2(OH)6·4(H2O)

Comments: Yellow coatings of vanmeersscheite on sandstone. Unless sealed in glass, all specimens should be considered to have become metavanmeersscheite.
Location: Cameron, Coconino Co., Arizona, USA. Scale: Sample Size 4 cm Glass Vial.
© Diederik Visser

Middendorfite: K3Na2Mn5Si12(O,OH)36·2H2O

Comments: Dark orange platy middendorfite in quartz matrix.
Location: Kirovskii Mine, Kukisvumchorr, Chibiny, Kola, Russia. Scale: Not Given.
© Diederik Visser