Piemontite R060905 - RRUFF Database: Raman, X-ray, Infrared, and Chemistry

Piemontite R060905

Name: Piemontite
RRUFF ID: R060905
Ideal Chemistry: Ca₂(Al₂Mn³⁺)[Si₂O₇][SiO₄]O(OH)
Locality: Praborna mine, Aosta Valley, St. Marcel, Italy
Source: Michael Scott S100161 [view label]
Owner: RRUFF
Description: Elongated purple single crystals associated with albite and romeite, R060323
Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis

Mineral Group: [ epidote (31) ]

Quick search: [ All Piemontite samples (3) ]

CHEMISTRY

RRUFF ID:	R060905.2
Sample Description:	Microprobe Fragment
Measured Chemistry:	(Ca_1.82Mn²⁺_0.12)_Σ=2(Al_1.95Mn³⁺_0.97Fe³⁺_0.08)_Σ=3[Si_2.00O₇][Si_1.00O₄]O(OH) ; = lighter phase, and the darker phase is albite.
Microprobe Data File:	[ Download Excel File ]

RAMAN SPECTRUM

RRUFF ID:

Sample Description:

Unoriented sample

DOWNLOADS:

To download sample data,
please select a specific
orientation angle.

BROAD SCAN WITH SPECTRAL ARTIFACTS

RRUFF ID:

R060905

Wavelength:

Sample Description:

Unoriented sample

Instrument settings:

Thermo Almega XR 532nm @ 100% of 150mW

DOWNLOADS:

	Raman Data (RAW)
	RRUFF File

POWDER DIFFRACTION

RRUFF ID:

R060905.1

Sample Description:

Powder

Cell Refinement Output:

a: 8.891(1)Å b: 5.6995(3)Å c: 10.228(2)Å
alpha: 90° beta: 114.99(1)° gamma: 90° Volume: 469.72(9)Å³ Crystal System: monoclinic

File Type Information

Calculated diffraction file.

File Type Information

Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

File Type Information

Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

DOWNLOADS:

	Cell Refinement Data
	Cell Refinement Output Data
	DIF File
	X-ray Data (XY - Processed)
	RRUFF File
	X-ray Data (XY - RAW)
	RRUFF File

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 [view file]

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 [view file]