Mineral Specimen Images (M)

Mineral Specimen Images (M)
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Mineral Specimen Images (M) With 387 Images

Miassite Image

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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 Image

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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 Image

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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 Image

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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 Image

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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 Image

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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 Image

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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

Microsommite Image

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Microsommite: (Na,Ca,K)7-8(Si,Al)12O24(Cl,SO4)2-3

Comments: Colorless prismatic microsommite microcrystals in vug.
Location: Novella Quarry, Vesuvius, Naples, Campania, Italy. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Microsommite Image

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Microsommite: (Na,Ca,K)7-8(Si,Al)12O24(Cl,SO4)2-3

Comments: White acycular microsommite crystals (one mm. long) in small vugs in matrix.
Location: Monte Somma - Vesuvio - NA, Campania, Italy. Scale: Picture size 1 cm.
© Sandro Maggia/Minernet.it

Middendorfite Image

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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

Miersite Image

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Miersite: (Ag,Cu)I

Comments: Translucent miersite crystals on matrix.
Location: Broken Hill, New South Wales, Australia. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Miessiite Image

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Miessiite: Pd11Te2Se2

Comments: B&W optical image of miessiite grain. (CanMin, v45:1221).
Location: Miessi River placers, Lemmenjoki area, Inari commune, Lapland, Finland.. Scale: See Image.
© Canadian Mineralogist

Miharaite Image

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Miharaite: Cu4FePbBiS6  
Angelaite: Cu2AgPbBiS4

Comments: Image of a polished section of the ore (without analyzer): galena (ga) with numerous inclusions miharaíte (wi) and angelaíte (an). Pyrite (pi), chalcopyrite (cp). (AsocGeolArgent, v59, no 4).
Location: Angela mine, IS-type mineralization in the district springs, Chubut, Argentina. Scale: See Image.
© Revista de la Asociación Geológica Argentina

Mikasaite Image

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Mikasaite: Fe+++2(SO4)3

Comments: Pale yellow to white platy crystalline mikasaite cluster.
Location: Ikushunbetsu, Mikassa, Hokkaido, Japan. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Milarite Image

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Milarite: K2Ca4Al2Be4Si24O60·(H2O)

Comments: Single transparent crystal of yellow Milarite.
Location: Near Rossing, Namibia. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Milarite Image

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Milarite: K2Ca4Al2Be4Si24O60·(H2O)

Comments: Blocky, barrel-shaped crystal of milarite on muscovite..
Location: Jagauaracu, Minas Gerais, Brazil. Scale: Crystal size 2.5 x 1 x 1 cm.
© Rob Lavinsky

Millerite Image

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Millerite: NiS

Comments: Fragile, acicular crystals of metallic yellow millerite in a vug.
Location: Hall's Gap, Lincoln County, Kentucky, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Millerite Image

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Millerite: NiS

Comments: Dense tuft of hair-like millerite crystals.
Location: Kerr-Addison mine, Timmons, Ontario, Canada. Scale: Tuft height 5 cm.
© Dave Barthelmy

Millisite Image

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Millisite: (Na,K)CaAl6(PO4)4(OH)9·3(H2O)

Comments: Milky cream-colored crystals of millisite.
Location: Clay Canyon, Fairfield, Utah County, Utah, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Millosevichite Image

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Millosevichite: (Al,Fe+++)2(SO4)3

Comments: Porous crust of Millosevichite.
Location: Schoeller Mine, Kladno, Stredoceský Kraj, Bohemia, Czech Republic. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag
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