Diederik Visser's Image Gallery

Protomangano-ferro-anthophyllite: (Mn++,Fe++)2(Fe++,Mg)5(Si4O11)2(OH)2

Comments: Light brown, silky protomangano-ferro-anthophyllite crystals on brown fayalite with grunerite.
Location: Suishouyama Pegmatite, Lizaka, Kawamatacho, Fukushima, Japan. Scale: Specimen Size 3x3 cm.
© Diederik Visser

Rastsvetaevite: Na27K8Ca12Fe3Zr6Si52O144(O,OH,H2O)6Cl2

Comments: Pinkish rastsvetaevite specimen in 1 cm plastic box.
Location: Mt. Rasvumchorr, Chibiny, Kola, Russia. Scale: See Fingers.
© Diederik Visser

Redgillite: Cu6(OH)10(SO4)·H2O

Comments: Light green acicular microcrystals of redgillite with unidentified blue Cu sulphate on matrix.
Location: Grube Schone Aussicht, Siegerland, Germany. Scale: Picture size 2 mm.
© Diederik Visser

Revdite: Na2Si2O5·5(H2O)

Comments: Transparent crystal fragment of revdite photographed through a capsule.
Location: Mt. Alluaiv, Lovozero, Kola, Russia. Scale: Not Given.
© Diederik Visser

Reyerite: (Na,K)4Ca14Si22Al2O58(OH)8·6(H2O)

Comments: Micaceous white plates of reyerite in cavity in basalt.
Location: Drynoch near Carbost, Isle of Skye, Scotland. Scale: Specimen Size 1.5x2 cm.
© Diederik Visser

Ribbeite: (Mn++,Mg)5(SiO4)2(OH)2

Comments: Massive pink to creamy ribbeite; slabbed polished section.
Location: South-Fayulinskoe Deposit, Southern Ural, Russia. Scale: Not Given.
© Diederik Visser

Rondorfite: Ca8Mg(SiO4)4Cl2

Comments: Brown to orange, shiny, massive rondorfite in matrix.
Location: Bellerberg, Eifel, Germany. Scale: Not Given.
© Diederik Visser

Sabatierite: Cu4TlSe3

Comments: Polished section with silvery metallic sabatierite in berzelianite.
Location: Bukov, Moravia, Czech Republic. Scale: Specimen Size 2x4 cm.
© Diederik Visser

Saddlebackite: Pb2Bi2Te2S3

Comments: BSE image of a saddlebackite grain.
Location: Kockkar' deposit, Plast Town, southern Urals, Russia. Scale: Scale Bar 300µm.
© Diederik Visser

Schwertmannite: Fe+++16O16(OH)12(SO4)2

Comments: Orange-brown, earthy schwertmannite.
Location: Jachymov, Bohemia, Czech Republic. Scale: Not Given.
© Diederik Visser

Shomiokite-(Y): Na3Y(CO3)3·3(H2O)

Comments: Rose-colored single crystal of shomiokite-(Y).
Location: Mt. Alluaiv, Lovozero, Kola, Russia. Scale: Specimen Size 6x9 mm.
© Diederik Visser

Smythite: (Fe,Ni)9S11 or (Fe,Ni)13S16

Comments: Dull metallic massive smythite with pyrite. Part of drillcore.
Location: Helena, Boulder Co., Montana, USA. Scale: Specimen Size 2.5x3 cm.
© Diederik Visser

Sobotkite: (K,Ca0.5)0.33(Mg,Al)3(Si3Al)O10(OH)2·1-5(H2O)

Comments: Massive, fine-grained rose-colored sobotkite (saponite).
Location: Cuya, Atacama, Chile. Scale: See Specimen Tray.
© Diederik Visser

Spodiophyllite: (Na,K)4(Mg,Fe++)3(Fe+++,Al)2(Si8O24)

Comments: Gray to black prismatic spodiophyllite crystals in matrix.
Location: Mt. Kukisvumtchorr, Chibiny, Kola, Russia. Scale: Specimen Size 4x4 cm.
© Diederik Visser

Squawcreekite: (Fe+++,Sb+++++,W++++++)O4·(H2O)  
Tripuhyite: Fe++Sb+++++O4

Comments: Micro red-orange squawcreekite crystals in matrix. The mineral is now considered to be a Zn-bearing variety of Tripuhyite.
Location: Squaw Creek Tin Mine, Catron County, New Mexico. Scale: Not Given.
© Diederik Visser

Stanfieldite: Ca4(Mg,Fe++,Mn)5(PO4)6

Comments: B&W BSE image of a fragment of stanfieldite in an epoxy grain mount.
Location: Brahin Meteorite, Pallasite, Minsk, Belarus (1810). Scale: See Image.
© Diederik Visser

Tadzhikite-(Ce): Ca4(Ce,Y)2(Ti,Al,Fe+++,[ ])2[Si4B4O22](OH)2

Comments: Brown crystal of tadzhikite-(Ce) with baratovite, polylithionite and zektzerite in matrix.
Location: Dara-I-Pioz, Tajikistan. Scale: Specimen Size 1.5x2 cm.
© Diederik Visser

Tantalite-(Mn): MnTa2O6  
Calciotantite: Ca(Ta,Nb)4O11

Comments: SEM image showing calciotantite (CT), manganotatntalite (MTT), microlite (MT) and lithiowodginite (LW) association.
Location: Granitic pegmatites, Kalba, Kazakhstan. Scale: Scale bar 100 µm and 10 µm.
© Diederik Visser

Tengerite-(Y): Y2(CO3)3·2-3(H2O)

Comments: White microcrystalline tengerite-(Y) seams on matrix.
Location: Evans-Lou Quarry, Quebec, Canada. Scale: Specimen Size 2x3 cm.
© Diederik Visser

Tintinaite: Pb22Cu+4(Sb,Bi)30S69

Comments: Massive silvery metallic tintinaite in matrix.
Location: Roznava, Slovak Republic. Scale: Specimen Size 2 x 4 cm.
© Diederik Visser