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piemontite

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Piemontite - Wikipedia
Piemontite is a sorosilicate mineral in the monoclinic crystal system with the chemical formula Ca 2(Al,Mn3+,Fe3+) 3(SiO 4)(Si 2O 7)O(OH). It is a member of ... en.wikipedia.org
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Piemontite: Mineral information, data and localities. - Mindat.org
Piemontite was first described from the Prabornaz mine, Saint-Marcel, Aosta Valley (until 1946 Aosta Valley was a province of Piedmont), Italy in 1758. www.mindat.org
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ALEX STREKEISEN-Piemontite-
Piemontite probably forms complete solid solution with all compositions of the clinozoisite-epidote series and differs from it by the presence of Manganese. www.alexstrekeisen.it
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piemontite
piemontite Min. (ˈpiːmɒntaɪt) [ad. G. piemontit (G. A. Kenngott Das Mohs'sche Mineralsystem (1853) 75), f. Piedmont (It. Piemonte, lit. Mountain-foot), its locality + -ite 2 b.] A brownish red or reddish black silicate of aluminium, iron, manganese, and calcium, resembling epidote; often called mang... Oxford English Dictionary
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Piemontite Genuine Watercolor - DANIEL SMITH Artists' Materials
Piemontite Genuine is a rich, versatile PrimaTek watercolor. A deep ruddy violet is the darkest value of this watercolor; adding water produces lovely violet- ... danielsmith.com
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Piemontite - Franklin Mineral Information - FOMS
Piemontite, a calcium manganese aluminum silicate hydroxide mineral of the epidote group, was described from Sterling Hill by Jenkins (1994). www.fomsnj.org
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Piemontite-Quartzite - EPI
Quartzite is a fine- to medium-grained metamorphic rock consisting of little interlocked quartz grains. It forms under high pressure from quartz-rich sediments ... www.epigem.de
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Piemontite Mineral Data - Mineralogy Database
Red, acicular crystalline aggregates of piemontite. Location: N'Chwaning mine, Kuruman, Nothern Cape, South Africa. Scale: Not Given. webmineral.com
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ALEX STREKEISEN-Piemontite-
Piemontite probably forms complete solid solution with all compositions of the clinozoisite-epidote series and differs from it by the presence of manganese. www.alexstrekeisen.it
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[PDF] Piemontite Ca2(Al,Mn3+,Fe3+)3(SiO4)(Si2O7)O(OH)
Crystal Data: Monoclinic. Point Group: 2/m. In prismatic, bladed or acicular crystals, to. 8 cm; in clusters of radiating crystals; as anhedral grains and ... www.handbookofmineralogy.org
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piedmontite
piedmontite Min. (ˈpiːdmɒntaɪt, ˈpjeːm-) [Alteration (by J. D. Dana) of G. piemontit: see piemontite.] = piemontite.1854 Dana Min. Index, Piedmontite. 1894 Min. Mag. X. 261 In the rhyolites the manganese-epidote, Piedmontite, is widely distributed. 1933 Mineral. Mag. XXIII. 417 The pleochroic colour... Oxford English Dictionary
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Epidote
Belonging to the same isomorphous group with epidote are the REE-rich allanite (containing primarily lanthanum, cerium, and yttrium), and the manganese-rich piemontite Piemontite occurs as small, reddish-black, monoclinic crystals in the manganese mines at San Marcel, near Ivrea in Piedmont, and in crystalline schists wikipedia.org
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List of gemstones by species
Diaspore Dickinsonite Diopside Dioptase Dolomite Dumortierite Ekanite Elbaite Emerald Trapiche emerald () Enstatite Bronzite Hypersthene Eosphorite Epidote Piemontite Pectolite Larimar Pentlandite Peridot Periclase Perthite Petalite (castorite) Pezzottaite Phenakite Phlogopite Phosgenite Phosphophyllite Phosphosiderite Piemontite wikipedia.org
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List of minerals recognized by the International Mineralogical Association (P–Q)
(IUPAC: calcium [metal] (dialuminiium manganese(III)) heptaoxodisilicate tetraoxosilicate oxyhydroxyl) Piemontite-(Pb) (IMA2011-087) 9.BG. [no] Piemontite-(Sr) (IMA1989-031) 9.BG. wikipedia.org
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Classification of silicate minerals
Carboirite-VIII Subclass '9.B': sorosilicates Epidote supergroup, Epidote group Clinozoisite , Niigataite , Epidote , Hancockite , Mukhinite , Piemontite , Piemontite-(Sr) , Tweddillite Allanite group Allanite-(Ce) , Allanite-(La) , Allanite-(Y) , Dissakisite-(Ce) , Dissakisite-(La) , Ferriallanite-( wikipedia.org
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