Diederik Visser's Image Gallery

Ferromerrillite: Ca9NaFe(PO4)7

Comments: Polished section grain mount of ferromerrillite with analysis..
Location: Meteorite Los Angeles, Shergotite, Martian basalt. Scale: See Image.
© Diederik Visser

Ferrorhodsite: (Fe,Cu)(Rh,Ir,Pt)2S4

Comments: Epoxy grain mount of ferrorhodsite grains.
Location: Yukhtochka placer, tributary of South Aldan River, Yakutia, Russia. Scale: Scale Bar 100 µm.
© Diederik Visser

Ferrosaponite: Ca0.3(Fe++,Mg,Fe+++)3(Si,Al)4O10(OH)2·4(H2O)

Comments: Black to greenish black balls of radiating Ferrosaponite crystals on white calcite.
Location: Levoberezhye Icelandspar deposit, Nizhuyaya Tunguska river, Evenkiya, Siberia, Russia. Scale: Not Given.
© Diederik Visser

Franconite: Na2Nb4O11·9(H2O)

Comments: Irregular to ball-shaped aggregates of silky white franconite on white albite.
Location: Mont St. Hilaire, Quebec, Canada. Scale: Specimen Size 2.5 x 4 cm.
© Diederik Visser

Georgechaoite: KNaZrSi3O9·2(H2O)

Comments: Single tan crystal of georgechaoite.
Location: Tolbachik Volcano, Kamchatka, Russia. Scale: Crystal Size 1.2 mm.
© Diederik Visser

Gmelinite-K: (K,Na,Ca)6(Al7Si17O48)·22(H2O)

Comments: Pink to reddish brown gmelinite-K crystals in a cavity in matrix.
Location: Fara Vicentino, Vicenza, Veneto, Italy. Scale: Not Given.
© Diederik Visser

Grischunite: NaCa2Mn++5Fe+++(AsO4)6·2(H2O)

Comments: Red-brown prismatic grischunite crystals on matrix.
Location: Falotta, Tinzen, Oberhalbstein, Graubünden, Switzerland. Scale: Specimen Size 1.5x2 cm.
© Diederik Visser

Guimaraesite: Ca2(Zn,Mg,Fe)5Be4(PO4)6(OH)4·6H2O

Comments: Brown guimaraesite spheres and crystal aggregates..
Location: Piaui district, Itinga, Minas Gerais, Brazil. Scale: Specimen size 2 mm.
© Diederik Visser

Gupeiite: Fe3Si

Comments: BSE image of a gupeiite (1) nodule surrounded by TiO2 (2).
Location: Turishkino, Leningrad District, Russia. Scale: See Image.
© Diederik Visser

Gutkovaite-Mn: CaK2Mn(Ti,Nb)4(Si4O12)2(O,OH)4·5(H2O)

Comments: Pale pink gutkovaite-(Mn) in matrix.
Location: Malyi Mannepakhk Mt., Chibiny, Kola, Russia. Scale: Specimen Size 1.5x2 cm.
© Diederik Visser

Huanghoite-(Ce): BaCe(CO3)2F  
Zhonghuacerite-(Ce): Ba2Ce(CO3)3F

Comments: Brown grains of zhonghuacerite-(Ce) in matrix. This type material may be Huanghoite-(Ce).
Location: Bayan Obo iron mine, Baotou, Inner Mongolia, China. Scale: Not Given.
© Diederik Visser

Jasmundite: Ca11(SiO4)4O2S  
Cuspidine: Ca4Si2O7(F,OH)2

Comments: Tan-brownish crystals of jasmundite and dark green cuspidine with gehlenite and spinel in matrix.
Location: Bellerberg, Eifel, Germany. Scale: Not Given.
© Diederik Visser

Johillerite: Na(Mg,Zn)3Cu(AsO4)3

Comments: Violet-blue grains of johillerite on matrix.
Location: Tolbachik Volcano, Kamchatka, Russia. Scale: Specimen Size 0.5x1 cm.
© Diederik Visser

Joseite-B: Bi4(S,Te)3

Comments: Steel gray, metallic, platy Joseite-β in quartz matrix.
Location: Jakub Mine, Kasejovice, Bohemia, Czech Republic. Scale: Picture Size 5x2 cm.
© Diederik Visser

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

Kamchatkite: KCu++3OCl(SO4)2

Comments: Greenish brown crystals of kamchatkite in sealed plastic box.
Location: Main Fracture Eruption (1975-1976), Tolbachik Volcano, Kamchatka, Russia. Scale: Specimen Size 2x3 cm.
© Diederik Visser

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

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

Kazakovite: Na6Mn++TiSi6O18

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

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