Piemontite R150096

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Record 408 of 459  

Name: Piemontite
RRUFF ID: R150096
Ideal Chemistry: Ca2(Al2Mn3+)[Si2O7][SiO4]O(OH)
Locality: Ash Canyon, Huachuca Mountains, Cochise County, Arizona, USA
Source: Marcus Origlieri [view label]
Owner: RRUFF
Description: Red prismatic crystals, associated with yellow tabular or massive axinite-(Mn), on white quartz matrix
Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction.
Mineral Group: [ epidote (31) ]
Quick search: [ All Piemontite samples (3) ]
Sample Description: Unoriented Raman on the primary sample

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RRUFF ID: R150096
Sample Description: Unoriented Raman on the primary sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
RRUFF ID: R150096.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 8.8907(22)Å    b: 5.6311(12)Å    c: 10.1602(25)Å
alpha: 90°    beta: 115.416(11)°    gamma: 90°   Volume: 459.43(11)Å3    Crystal System: monoclinic

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REFERENCES for Piemontite

American Mineralogist Crystal Structure Database Record: [view record]

Anthony J W, Bideaux R A, Bladh K W, and Nichols M C (1990) Handbook of Mineralogy, Mineral Data Publishing, Tucson Arizona, USA, by permission of the Mineralogical Society of America. [view file]

Kenngott A (1853) Piemontit, in Das Mohs’sche Mineralsystem Verlag und Druck Wien 74-75   [view file]

Marmo V, Neuvonen K J, Ojanperä P (1959) The piedmontites of piedmont (Italy), Kajlidongri (India), and Marampa (Sierra Leone), Bulletin de la Commission Géologique de Findlande, 184, 11-20   [view file]

International Mineralogical Association (1962) International Mineralogical Association: Commission on new minerals and mineral names, Mineralogical Magazine, 33, 260-263   [view file]

Welin E (1968) Notes on the mineralogy of Sweden 6. X-ray powder data for minerals from Långban and the related mineral deposits of Central Sweden, Arkiv för Mineralogi och Geologi, 4, 499-541

Dollase W A (1969) Crystal structure and cation ordering of piemontite, American Mineralogist, 54, 710-717   [view file]

International Mineralogical Association (1980) International Mineralogical Association: Commission on new minerals and mineral names, Mineralogical Magazine, 43, 1053-1055   [view file]

Catti M, Ferraris G, Ivaldi G (1989) On the crystal chemistry of strontian piemontite with some remarks on the nomenclature of the epidote group, Neues Jahrbuch für Mineralogie, Monatshefte, 1989, 357-366

Bonazzi P, Garbarino C, Menchetti S (1992) Crystal chemistry of piemontites: REE-bearing piemontite from Monte Brugiana, Alpi Apuane, Italy, European Journal of Mineralogy, 4, 23-33

Bonazzi P, Menchetti S (1994) Structural variations induced by heat treatment in allanite and REE-bearing piemontite, American Mineralogist, 79, 1176-1184   [view file]

Bonazzi P, Menchetti S, Reinecke T (1996) Solid solution between piemontite and androsite-(La), a new mineral of the epidote group from Andros Island, Greece, American Mineralogist, 81, 735-742   [view file]

Langer K, Tillmanns E, Kersten M, Almen H, Arni R K (2002) The crystal chemistry of Mn3+ in the clino- and orthozoisite structure types, Ca2M33+[OH|O|SiO4|Si2O7]: A structural and spectroscopic study of some natural piemontites and “thulites” and their synthetic equivalents, Zeitschrift für Kristallographie, 217, 563-580

Liebscher A (2004) Spectroscopy of epidote minerals, Reviews in Mineralogy and Geochemistry, 56, Mineralogical Society of America 125-170

Armbruster T, Bonazzi P, Akasaka M, Bermanec V, Chopin C, Giere R, Huess-Assbichler S, Liebscher A, Menchetti S, Pan Y, Pasero M (2006) Recommended nomeclature of epidote-group minerals, European Journal of Mineralogy, 18, 551-567   [view file]

Nagashima M, Akasaka M (2010) X-ray Rietveld and 57Fe Mössbauer studies of epidote and piemontite on the join Ca2Al2Fe3+Si3O12(OH) - Ca2Al2Mn3+Si3O12(OH) formed by hydrothermal synthesis, American Mineralogist, 95, 1237-1246   [view file]

Nagashima M, Armbruster T, Akasaka M, Minakawa T (2010) Crystal chemistry of Mn2+-, Sr-rich and REE-bearing piemontite from the Kamisugai mine in the Sambagawa metamorphic belt, Shikoku, Japan, Journal of Mineralogical and Petrological Sciences, 105, 142-150

Nagashima M, Sano Y, Kochi T, Akasaka M, Sano-Furukawa A (2020) Crystal chemistry of Sr–rich piemontite from manganese ore deposit of the Tone mine, Nishisonogi Peninsula, Nagasaki, southwest Japan, Journal of Mineralogical and Petrological Sciences, 115, 391-406