Mineral Specimen Images (M)

Mineral Thumbnail Images (M)

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Mineral Specimen Images (M) With 774 Images

Margaritasite Image

Images:

Margaritasite: (Cs,K,H3O)2(UO2)2V2O8·(H2O)

Comments: Bright yellow earthy margaritasite crust on rhyolite.
Location: Margaritas Open Pit Mine, Sierra Pena Blanca, Chihuahua,. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Margaritasite Image

Images:

Margaritasite: (Cs,K,H3O)2(UO2)2V2O8·(H2O)

Margarite Image

Images:

Margarite: CaAl2(Al2Si2)O10(OH)2

Comments: Beige, massive, fibrous/foliated aggregate of margarite crystals.
Location: Long Hill/Old Tungsten Mine in Trumbull, Connecticut, USA. Scale: 10 x 5 cm.
© Walter Mroch / Gem and Mineral Exploration Company

Margarite Image

Images:

Margarite: CaAl2(Al2Si2)O10(OH)2

Margarosanite Image

Images:

Margarosanite: Pb(Ca,Mn++)2Si3O9

Comments: Clear or white, long, thin bladed crystals of margarosanite on matrix.
Location: Langban, Varmland, Sweden. Scale: Crystal size 1cm.
© Tom Loomis / Dakota Matrix

Margarosanite Image

Images:

Margarosanite: Pb(Ca,Mn++)2Si3O9

Comments: Clear or white, long, thin bladed crystals of margarosanite on matrix.
Location: Langban, Varmland, Sweden. Scale: Crystal size 1cm.
© Tom Loomis / Dakota Matrix

Marialite Image

Images:

Marialite: Na4Al3Si9O24Cl

Comments: Fully terminated 4.3 cm crystal of marialite. Weakly fluorescent red under SW UV light.
Location: Gooderham, Haliburton Co., Ontario, Canada. Scale: 6 x 1.5 cm.
© John Veevaert

Marialite Image

Images:

Marialite: Na4Al3Si9O24Cl

Comments: Fully terminated 4.3 cm crystal of marialite. Weakly fluorescent red under SW UV light.
Location: Gooderham, Haliburton Co., Ontario, Canada. Scale: 6 x 1.5 cm.
© John Veevaert

Marianoite Image

Images:

Marianoite: Na2Ca4(Nb,Zr)2(Si2O7)2(O,F)4

Comments: PPL image of euhedral crystals of marianoite, titanite and U-rich pyrochlore in the phlogopite-calcite silicocarbonatite. (CanMin, v46:1023).
Location: Mesoproterozoic Prairie Lake intrusive complex, in northwestern Ontario, Canada. Scale: See Image.
© Canadian Mineralogist

Marianoite Image

Images:

Marianoite: Na2Ca4(Nb,Zr)2(Si2O7)2(O,F)4

Comments: SEM images showing the morphology of marianoite crystals, (CanMin, v46:1023).
Location: Mesoproterozoic Prairie Lake intrusive complex, in northwestern Ontario, Canada. Scale: See Images.
© Canadian Mineralogist

Marianoite Image

Images:

Marianoite: Na2Ca4(Nb,Zr)2(Si2O7)2(O,F)4

Marianoite Image

Images:

Marianoite: Na2Ca4(Nb,Zr)2(Si2O7)2(O,F)4

Maricite Image

Images:

Maricite: NaFe++PO4
Vivianite: Fe++3(PO4)2·8(H2O)

Comments: Brown maricite nodule with internal radiating structure, with blue vivianite.
Location: Big Fish River, Yukon Territory, Canada. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Maricite Image

Images:

Maricite: NaFe++PO4
Vivianite: Fe++3(PO4)2·8(H2O)

Maricopaite Image

Images:

Maricopaite: Pb7Ca2(Si,Al)48O100·32(H2O)

Comments: Opaque white prismatic maricopaite microcrystals and yellow crystalline mimetite.
Location: Moon Anchor Mine, near Tonopah, Maricopa County, Arizona, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Maricopaite Image

Images:

Maricopaite: Pb7Ca2(Si,Al)48O100·32(H2O)

Marinellite Image

Images:

Marinellite: [(Na,K)42Ca6](Si36Al36O144)(SO4)8Cl2·6(H2O)

Comments: Colorless to pale bluish-gray anhedral marinellite crystal.
Location: Monte Cavalluccio, Sacrofano, Campagnano di Roma, Italy. Scale: See Image.
© Rruff Database

Marinellite Image

Images:

Marinellite: [(Na,K)42Ca6](Si36Al36O144)(SO4)8Cl2·6(H2O)

Comments: Colorless to pale bluish-gray anhedral marinellite crystal.
Location: Monte Cavalluccio, Sacrofano, Campagnano di Roma, Italy. Scale: See Image.
© Rruff Database

Marokite Image

Images:

Marokite: CaMn+++2O4

Comments: Dark brown crystalline massive marokite.
Location: vein #2, Tachgagalt, Ouarzazet, Morocco. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Marokite Image

Images:

Marokite: CaMn+++2O4

Comments: Dark brown crystalline massive marokite.
Location: vein #2, Tachgagalt, Ouarzazet, Morocco. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

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