Mineral Specimen Images (M)

Mineral Thumbnail Images (M)

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Mineral Specimen Images (M) With 774 Images

Meridianiite Image

Images:

Meridianiite: MgSO4·11H2O

Comments: Red arrow points meridianiite on the underside of a post in a frozen pond. Ice, in the form of snow covers the top of the post and the frozen pond surface (AmMin, v92:1757). This in an analoge for probable Martian occurrences.
Location: The ponds are on the Basque claims, which occur in a small valley in the Thompson region of central British Columbia. Scale: See Image.
© American Mineralogist

Meridianiite Image

Images:

Meridianiite: MgSO4·11H2O

Merlinoite Image

Images:

Merlinoite: (K,Ca,Na,Ba)7Si23Al9O64·23(H2O)

Comments: Colorless transparent prismatic merlinoite microcrystals in vug.
Location: Lagno Ahendo Lare, Vesuvius, Naples, Campania, Italy. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Merlinoite Image

Images:

Merlinoite: (K,Ca,Na,Ba)7Si23Al9O64·23(H2O)

Merrihueite Image

Images:

Merrihueite: (K,Na)2(Fe++,Mg)5Si12O30
Chayesite: K(Mg,Fe++)4Fe+++(Si12O30)

Comments: A sharp, chemically zoned crystal of copper-brown merrihueite(?) (see Lapis-Magazine 4/2002 Page 38/39) overgrown on bluish chayesite.
Location: Basalt quarry, Pauliberg Mt., Kobersdorf, Oberpullendorf, Burgenland, Austria. Scale: Crystal Size 0.15 cm.
© Jeff Weissman / Photographic Guide to Mineral Species

Merrihueite Image

Images:

Merrihueite: (K,Na)2(Fe++,Mg)5Si12O30
Chayesite: K(Mg,Fe++)4Fe+++(Si12O30)

Merrillite Image

Images:

Merrillite: Ca18Na2Mg2(PO4)14

Comments: BSE image of merrillite intergrown with silicates (plagioclase (plag), orthopyroxene(opx), olivine(ol)) next to coarse FeNi-metal (white).
Location: Portales Valley meteorite (1988). Scale: See Image.
© Alex Ruzicka / Planetary Science Research

Merrillite Image

Images:

Merrillite: Ca18Na2Mg2(PO4)14

Mertieite-II Image

Images:

Mertieite-II: Pd8(Sb,As)3

Comments: Oil immersion hotomicrograph of inclusions of mertieite-II in matrix of Pt-Fe alloy (CanMin, v 42, p 614).
Location: Kondyor PGE placer, Khabarovskiy Kray, eastern Siberia, Russia. Scale: See Image.
© Canadian Mineralogist

Mertieite-II Image

Images:

Mertieite-II: Pd8(Sb,As)3

Merwinite Image

Images:

Merwinite: Ca3Mg(SiO4)2

Comments: Dark brown crystalline merwinite in light green crystalline massive marble.
Location: Crestmore Quarry, Riverside County, California, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Merwinite Image

Images:

Merwinite: Ca3Mg(SiO4)2

Mesolite Image

Images:

Mesolite: Na2Ca2Al6Si9O30·8(H2O)

Comments: Cotton-ball cluster of acicular white mesolite crystals on celestine.
Location: Cheyenne, Laramie County, Wyoming. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Mesolite Image

Images:

Mesolite: Na2Ca2Al6Si9O30·8(H2O)

Comments: Cotton-ball cluster of acicular white mesolite crystals on celestine.
Location: Cheyenne, Laramie County, Wyoming. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Messelite Image

Images:

Messelite: Ca2(Fe++,Mn)(PO4)2·2(H2O)
Leucophosphite: KFe+++2(PO4)2(OH)·2(H2O)

Comments: White messelite crystals with greenish leucophosphite.
Location: Tip Top mine, Custer, Custer County, South Dakota, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Messelite Image

Images:

Messelite: Ca2(Fe++,Mn)(PO4)2·2(H2O)
Leucophosphite: KFe+++2(PO4)2(OH)·2(H2O)

Meta-autunite Image

Images:

Meta-autunite: Ca(UO2)2(PO4)2·2-6(H2O)

Comments: Platy meta-autunite crystals fluorescing greenish yellow.
Location: Carretona, Spain. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Meta-autunite Image

Images:

Meta-autunite: Ca(UO2)2(PO4)2·2-6(H2O)
Autunite: Ca(UO2)2(PO4)2·10-12(H2O)

Comments: Corner of a meta-autunite crystal showing the dehydration of autunite (dark green) to meta-autunite (lighter yellowish green)..
Location: Daybreak Mine, Spokane County, Washington, U.S.A.. Scale: See Image.
© Paul M. Schumacher

Meta-autunite Image

Images:

Meta-autunite: Ca(UO2)2(PO4)2·2-6(H2O)

Comments: Platy meta-autunite crystals fluorescing greenish yellow.
Location: Carretona, Spain. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Meta-autunite Image

Images:

Meta-autunite: Ca(UO2)2(PO4)2·2-6(H2O)
Autunite: Ca(UO2)2(PO4)2·10-12(H2O)

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