's Image Gallery

Metazeunerite: Cu(UO2)2(AsO4)2·8(H2O)

Comments: Lime green crystals of metazeunerite on matrix.
Location: Schneeberg, Saxony, Germany. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Metazeunerite: Cu(UO2)2(AsO4)2·8(H2O)  
Trogerite: H2(UO2)2(AsO4)2·8(H2O)

Comments: Yellow crystals of trögerite with green metazeunerite.
Location: Walpurgis Flats, Weißer Hirsch Mine, Neustädtel, Schneeberg District, Erzgebirge, Saxony, Germany. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Methane hydrate-I: 46(H2O)·2(S)·6(L)

Comments: Yellow to white outcropping of massive methane hydrate infested with 2 to 5 cm polychaete worms (Hesiocoeca sp), AKA "ice worms".
Location: 540 meters deep in the Gulf of Mexico. Scale: Picture size 30 cm.
© Charles Fisher / Penn State

Meurigite-K: [K(H2O)2.5][Fe+++8(PO4)6(OH)7(H2O)4]

Comments: Brown meuirite-K oolite showing the concentric-fibrous internal structure.
Location: Rengersdorf, Görlitz, Oberlausitz, Saxony, Germany. Scale: Picture size 6 mm.
© Thomas Witzke / Abraxas-Verlag

Meurigite-K: [K(H2O)2.5][Fe+++8(PO4)6(OH)7(H2O)4]

Comments: Yellow, radial acicular sprays of meurigite to about 0.75 mm.
Location: Teskov quarry, near Prague, Bohemia, Czech Republic. Scale: Picture size 1.5 cm.
© Tom Loomis / Dakota Matrix

Meurigite-K: [K(H2O)2.5][Fe+++8(PO4)6(OH)7(H2O)4]

Comments: Yellow-green spheroidal crystals of meurigite to 0.1mm, in a 5mm vug in black rockbridgeite(?) matrix.
Location: Hagendorf Sud Pegmatite, Oberpfalz, Bavaria, Germany. Scale: Picture size 1.2 cm.
© Tom Loomis / Dakota Matrix

Meurigite-Na: [Na(H2O)2.5][Fe+++8(PO4)6(OH)7(H2O)4]

Comments: B&W image of sprays of meurigite-Na with turquoise, intergrown kidwellite/lipscombite, and crandallite on goethite. (AmMin, v94:720).
Location: Silver Coin mine, Valmy, Iron Point district, Humboldt County, Nevada, USA. Scale: Largest Spray = 1 mm.
© American Mineralogist

Meurigite-Na: [Na(H2O)2.5][Fe+++8(PO4)6(OH)7(H2O)4]

Comments: SEM image of meurigite-Na crystals. (AmMin, v94:720).
Location: Silver Coin mine, Valmy, Iron Point district, Humboldt County, Nevada, USA. Scale: See Image.
© American Mineralogist

Meurigite-Na: [Na(H2O)2.5][Fe+++8(PO4)6(OH)7(H2O)4]

Comments: Pale pearly yellow platy Meurigite-Na crystals all over vuggy matrix.
Location: Tom's Phosphate quarry, Kapunda, South Australia, Australia. Scale: Picture size 5 mm.
© Tom Loomis / Dakota Matrix

Meyerhofferite: Ca2B6O6(OH)10·2(H2O)

Comments: Transparent, tabular crystals of meyerhofferite on matrix.
Location: 20-Mule Team Canyon, Death Valley, Inyo County, California, USA. Scale: Crystal size 1.5 cm.
© John Veevaert

Meymacite: WO3·2(H2O)

Comments: Orange-brownish to yellow massive Meymacite.
Location: Meymac, Corrèze, Limousin, France. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Miargyrite: AgSbS2

Comments: Metallic miargyrite crystal on quartz.
Location: Braunsdorf, Saxony, Germay. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Miargyrite: AgSbS2  
Aramayoite: Ag3Sb2(Sb,Bi)S6

Comments: Aramayoite is present as large thin plates (blue iridescence) to 1mm in massive gray miargyrite matrix.
Location: Julcani Silver mine, Huancavelica Dept., Peru. Scale: Picture size 5 mm.
© Tom Loomis / Dakota Matrix

Miassite: Rh17S15

Comments: Composite image of dark gray metallic polished grains and pale yellow vanadinite embedded in epoxy. Miassite occurs as a small inclusion in the larger isoferrplatinum grain on the inset BSE image.
Location: Yukhtochka placer, Tributary of Aldan River, Yakutia, Russia. Scale: See Image.
© Rruff Database

Micheelsenite: (Ca,Y)3Al[PO3OH,CO3](CO3)(OH)6·12(H2O)

Comments: Cotton ball bundles of white, fibrous michellsenite crystals on albite.
Location: Mont Saint-Hilaire, Rouville Co., Quebec, Canada. Scale: Sample size 4 x 3 x 1.5 cm.
© Tom Loomis / Dakota Matrix

Michenerite: (Pd,Pt)BiTe

Comments: BSE image of pentlandite with inclusions of nickeliferous pyrite. Pentlandite hosts discrete grains of cobaltite/gersdorffite with michenerite (PdBiTe) crystals as overgrowths and replacement of the arsenide.
Location: Worthington mine, Worthington offset, Supergiant Ni-Cu-PGE Sudbury District, Ontario, Canada. Scale: See Image.
© National Resouces of Canada

Microcline: KAlSi3O8  
Columbite-(Fe): Fe++Nb2O6

Comments: Blocky, dark brown ferrocolumbite on pale greenish blue amazonite (microcline).
Location: Crystal Park, El Paso Co., Colorado, USA. Scale: 2.5 x 1.5 cm.
© Fabre Minerals

Microcline: KAlSi3O8

Comments: Opaque blocky tan crystal of microcline.
Location: Moat Mountain, near Conway, Carroll County, New Hampshire, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Microlite: (Na,Ca)2Ta2O6(O,OH,F)

Comments: Brown crystal of microlite 10 mm in an albite matrix.
Location: Morefield Mine, Winterham, Amelia Co., Virginia, USA. Scale: 5x4x3 cm.
© John Betts - Fine Minerals

Microlite: (Na,Ca)2Ta2O6(O,OH,F)

Comments: Golden-colored microlite octahedrons on white albite.
Location: Maxixe Mine, Itinga, Minas Gerais, Brazil. Scale: Crystal size .5 cm.
© John Veevaert