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's Image Gallery With 4041 Images

Montebrasite Image

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Montebrasite: LiAl(PO4)(OH,F)

Comments: Transparent, pale yellow, tabular crystals of Montebrasite on matrix.
Location: Newry, Oxford County, Maine, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Monteregianite-(Y) Image

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Monteregianite-(Y): (Na,K)6(Y,Ca)2Si16O38·10(H2O)

Comments: Feathery, radiating pinkish-white acicular monteregianite crystals on one end of greenish matrix.
Location: Desourdy Quarry, Mont Saint-Hilaire, Quebec, Canada. Scale: Specimen Size 5x2.5x2.5 cm..
© John Betts - Fine Minerals

Montesommaite Image

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Montesommaite: (K,Na)9Al9Si23O64·10(H2O)

Comments: Translucent prismatic montesommaite crystals in vugs.
Location: Pollena Quarry, Vesuvius, Naples, Campania, Italy. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Montetrisaite Image

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Montetrisaite: Cu6(SO4)(OH)10·H2O

Comments: SEM image of montetrisaite showing the splintery fracture. {010} face is shown. (CanMin, v47:143).
Location: Monte Trisa, Torrebelvicino, Vicenza, Italy. Scale: See Image.
© Canadian Mineralogist

Montgomeryite Image

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Montgomeryite: Ca4MgAl4(PO4)6(OH)4·12(H2O)

Comments: Matrix specimen covered with sprays to 0.5 cm of salmon colored montgomeryite crystals.
Location: Tip Top Mine, Custer County, South Dakota, USA. Scale: 13 x 8 cm.
© John Veevaert

Montgomeryite Image

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Montgomeryite: Ca4MgAl4(PO4)6(OH)4·12(H2O)  
Tiptopite: K2(Na,Ca)2Li3Be6(PO4)6(OH)2·(H2O)

Comments: Clear, acicular crystals of tiptopite with red montgomeryite.
Location: Tip Top mine, Custer, Custer County, South Dakota, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Montgomeryite Image

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Montgomeryite: Ca4MgAl4(PO4)6(OH)4·12(H2O)  
Tiptopite: K2(Na,Ca)2Li3Be6(PO4)6(OH)2·(H2O)  
Englishite: K3Na2Ca10Al15(PO4)21(OH)7·26(H2O)

Comments: Red montgomeryite lath-like crystals to 1mm in 2mm rosettes associated with clear, acicular sprays of tiptopite to 0.75mm and white cottonball-like crystals of englishite to 0.2mm.
Location: Tip Top mine, Custer Co., South Dakota, USA. Scale: Picture size 5 mm.
© Tom Loomis / Dakota Matrix

Monticellite Image

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Monticellite: CaMgSiO4

Comments: Pale brown crystalline massive monticellite.
Location: Crestmore Quarry, Riverside County, California, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Monticellite Image

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Monticellite: CaMgSiO4  
Melilite: (Ca,Na)2(Al,Mg,Fe++)(Si,Al)2O7

Comments: Thin-section image of monticellite interstitial between unaltered melilite crystals (CanMin v. 41. p 1259).
Location: Skarns along the contact of a diorite intrusion at Oravit¸a, Banat, in Romania. Scale: Field of View 2.7 mm.
© Canadian Mineralogist

Montmorillonite Image

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Montmorillonite: (Na,Ca)0,3(Al,Mg)2Si4O10(OH)2·n(H2O)

Comments: Authigenic smectite (montmorillonite) overgrown on pore spaces and authigenicly-overgrown quartz grains in a sandstone. SEM image of a core sample.
Location: Unknown. Scale: Picture size 67 µ-m.
© OMNI Laboratories, Inc

Montmorillonite Image

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Montmorillonite: (Na,Ca)0,3(Al,Mg)2Si4O10(OH)2·n(H2O)

Comments: Bright pink chalky massive montmorillonite.
Location: Tamminen Quarry, Greenwood, Oxford County, Maine, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Montroseite Image

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Montroseite: (V+++,Fe+++,V++++)O(OH)

Comments: Black silky fibrous montroseite on sandstone with tyuyamunite.
Location: Monument No. 2 Mine, Kayenta, Apache County, Arizona, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Montroyalite Image

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Montroyalite: Sr4Al8(CO3)3(OH,F)26·10-11(H2O)

Comments: Translucent micro spherical montroyalite on matrix.
Location: Francon Quarry, Montreal, Quebec, Canada. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Montroydite Image

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Montroydite: HgO

Comments: Red to orange radial and crystalline montroydite aggregates on black calcite.
Location: Terlingua, Brewster County, Texas, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Montroydite Image

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Montroydite: HgO  
Pinchite: Hg++5O4Cl2

Comments: Minute lustrous black pinchite crystals on white montroydite.
Location: Terlingua, Brewster County, Texas, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Mooihoekite Image

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Mooihoekite: Cu9Fe9S16

Comments: Lighter toned brassy metallic mooihoekite masses in chalcopyrite with magnetite.
Location: Oktyabr'skoye Mine, Norilsk, Krasnoyarsk Territory, Siberia, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Mooihoekite Image

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Mooihoekite: Cu9Fe9S16  
Haycockite: Cu4Fe5S8

Comments: B&W polished section image of mooihoekite-haycockite intergrowth showing tarnished mooihoekite (mh) and haycockite (hc). The small whitest lamellar grains are mackinawite.
Location: Hortonolite dunite (replacement,) pegmatite, Mooihoek Farm, Lydenburg District, Transvaal, South Africa. (AmMin, v57:689). Scale: See Image.
© American Mineralogist

Moolooite Image

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Moolooite: Cu++(C2O4)·n(H2O) (n < 1)

Comments: Light bluish moolooite encrustation.
Location: Ibergstausee, Stempeda, Südharz, Thuringia, Germany. Scale: Picture size 0.9 mm.
© Thomas Witzke / Abraxas-Verlag

Mooreite Image

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Mooreite: (Mg,Zn,Mn)15(SO4)2(OH)26·8(H2O)

Comments: Translucent, wedge-shaped crystals of mooreite on matrix.
Location: Franklin, Sussex County, New Jersey, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Moorhouseite Image

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Moorhouseite: (Co,Ni,Mn)SO4·6(H2O)

Comments: Pink crystalline moorhouseite in sandstone.
Location: Cameron, Coconino County, Arizona, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

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