Mineral Specimen Images (M)

Mineral Thumbnail Images (M)

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Mineral Specimen Images (M) With 774 Images

Matioliite Image

Images:

Matioliite: NaMgAl5(PO4)4(OH)6·2H2O

Comments: fiberous, blueish, matioliite aggregate on quartz.
Location: Gentil mine, Mendes Pimentel, Minas Gerais, Brazil. Scale: See Image.
© American Mineralogist

Matioliite Image

Images:

Matioliite: NaMgAl5(PO4)4(OH)6·2H2O

Comments: fiberous, blueish, matioliite aggregate on quartz.
Location: Gentil mine, Mendes Pimentel, Minas Gerais, Brazil. Scale: See Image.
© American Mineralogist

Matlockite Image

Images:

Matlockite: PbFCl

Comments: Pale cream colored rosettes of matlockite crystals on matrix.
Location: Laurium, Greece. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Matlockite Image

Images:

Matlockite: PbFCl

Comments: Pale cream colored rosettes of matlockite crystals on matrix.
Location: Laurium, Greece. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Matsubaraite Image

Images:

Matsubaraite: Sr4TiTi4Si4O22

Comments: Minute, dark grains of matsubaraite in a very pale green jadeite matrix.
Location: Itoigawa-Ohmi, Niigata Prefecture, Japan. Scale: Picture size 1 cm.
© American Mineralogist

Matsubaraite Image

Images:

Matsubaraite: Sr4TiTi4Si4O22

Comments: Minute, dark grains of matsubaraite in a very pale green jadeite matrix.
Location: Itoigawa-Ohmi, Niigata Prefecture, Japan. Scale: Picture size 1 cm.
© American Mineralogist

Mattagamite Image

Images:

Mattagamite: CoTe2
Altaite: PbTe
Tellurantimony: Sb2Te3

Comments: Silvery metallic intergrowths of mattagamite with tellurantimony and altaite.
Location: Mattagami Lake Mine, Quebec, Canada. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Mattagamite Image

Images:

Mattagamite: CoTe2
Altaite: PbTe
Tellurantimony: Sb2Te3

Mattheddleite Image

Images:

Mattheddleite: Pb20(SiO4)7(SO4)4Cl4

Comments: Radial aggregates of colorless hexagonal microcrystals of mattheddleite with minor blue-green caledonite.
Location: Dry Smale Gill, Roughton Gill, Caldbeck Fells, Cumbria (Cumberland), England, United Kingdom. Scale: See Image.
© Rruff Database

Mattheddleite Image

Images:

Mattheddleite: Pb20(SiO4)7(SO4)4Cl4

Matulaite Image

Images:

Matulaite: CaAl18(PO4)12(OH)20·28(H2O)

Comments: Opaque white pearly crystalline matulaite coating on quartz and brown limonite.
Location: Bachman Iron Mine, Hellertown, Northampton County, Pennsylvania, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Matulaite Image

Images:

Matulaite: CaAl18(PO4)12(OH)20·28(H2O)

Maucherite Image

Images:

Maucherite: Ni11As8

Comments: Massive, fine-grained, dark maucherite with cream-colored barite.
Location: Eisleben, Mansfeld Basin, Saxony-Anhalt, Germany. Scale: Specimen size 8 cm.
© Thomas Witzke / Abraxas-Verlag

Maucherite Image

Images:

Maucherite: Ni11As8

Comments: Reddish, semi-metallic aggregate of feathery maucherite crystals on matrix.
Location: Cobalt, Ontario, Canada. Scale: Picture size 2 mm.
© Reiner Mielke

Maucherite Image

Images:

Maucherite: Ni11As8
Argentopentlandite: Ag(Fe,Ni)8S8

Comments: Reflected light image of a polished section containing argentopentlandite (AgP) with galena (G), native silver (Ag), chalcopyrite (Ch) and maucherite (M).
Location: Silver City, Ontonagon Co., Michigan, USA. Scale: Picture Size 900 µm.
© Jeff Weissman / Photographic Guide to Mineral Species

Maucherite Image

Images:

Maucherite: Ni11As8

Maucherite Image

Images:

Maucherite: Ni11As8

Comments: Reddish, semi-metallic aggregate of feathery maucherite crystals on matrix.
Location: Cobalt, Ontario, Canada. Scale: Picture size 2 mm.
© Reiner Mielke

Maucherite Image

Images:

Maucherite: Ni11As8
Argentopentlandite: Ag(Fe,Ni)8S8

Mawbyite Image

Images:

Mawbyite: Pb(Fe+++Zn)2(AsO4)2(OH,H2O)2

Comments: Brown crystalline mawbyite in quartz.
Location: Kintore Open Cut, Broken Hill, New South Wales, Australia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Mawbyite Image

Images:

Mawbyite: Pb(Fe+++Zn)2(AsO4)2(OH,H2O)2

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