Epidote R070205

Name: Epidote
RRUFF ID: R070205
Ideal Chemistry: Ca2(Al2Fe3+)[Si2O7][SiO4]O(OH)
Locality: Jebel Shacro, Morocco
Source: Renato and Adriana Pagano [view label]
Owner: RRUFF
Description: Red-purple prismatic crystals
Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis.
Mineral Groups: [ epidote (25) ] [ clinozoisite (16) ]
Quick search: [ All Epidote samples (13) ]
RRUFF ID: R070205.2
Sample Description: Microprobe Fragment
Measured Chemistry: (Ca1.96Mn2+0.04)Σ=2(Fe3+0.72Al0.22Mn3+0.06)Σ=1Al2.00(Si2.00O7)(Si1.00O4)O(OH); OH assumed by stoichiometry, Mn2+ and Mn3+ splitted by charge balance
Microprobe Data File: [ Download Excel File ]
Sample Description: Unoriented sample

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

Direction of polarization of laser relative to fiducial mark:
X Min:    X Max:    X Sort:
RRUFF ID: R070205
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
RRUFF ID: R070205.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 8.876(1)Å    b: 5.6423(7)Å    c: 10.160(1)Å
alpha: 90°    beta: 115.306(7)°    gamma: 90°   Volume: 459.9(1)Å3    Crystal System: monoclinic
  File Type Information Close
Calculated diffraction file.

  File Type Information Close
Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

X Min:    X Max:    X Sort:
REFERENCES for Epidote

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]

Haüy R J (1801) Epidote, Traité de Minéralogie, 3, 102-113   [view file]

Weinschenk E (1896) Ueber epidot und zoisit, Zeitschrift für Kristallographie, 26, 156-177   [view file]

Ito T (1947) The structure of epidote (HCa2(Al,Fe)Al2Si3O13), American Mineralogist, 32, 309-321   [view file]

Hutton C O (1950) Studies of heavy detrital minerals, Bulletin of the Geological Society of America, 61, 635-710   [view file]

Ito T, Morimoto N, Sadanaga R (1954) On the structure of epidote, Acta Crystallographica, 7, 53-59

Burns R G, Strens R G J (1967) Structurel interpretation of polarized absorption spectra of the Al-Fe-Mn-Cr epidotes, Mineralogical Magazine, 36, 204-226   [view file]

Gabe E J, Portheine J C, Whitlow S H (1973) A reinvestigation of the epidote structure: confirmation of the iron location, American Mineralogist, 58, 218-223   [view file]

LeAnderson P J (1981) Calculation of temperature and X(CO2) values for tremolite—K–feldspar—diopside—epidote assemblages, The Canadian Mineralogist, 19, 619-630   [view file]

Spear F S (1982) Phase equilibria of amphibolites from the post pond volcanics, Mt. cube quadrangle, Vermont, Journal of Petrology, 23, 383-426

de Lummen G V M (1986) Tin-bearing epidote from skarn in the Land's End aureole, Cornwall, England, The Canadian Mineralogist, 24, 411-415   [view file]

Farrow C E G, Barr S M (1992) Petrology of high-Al-hornblende- and magmatic-epidote-bearing plutons in the southeastern Cape Breton Highlands, Nova Scotia, The Canadian Mineralogist, 30, 377-392   [view file]

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

Artioli G, Quartieri S, Deriu A (1995) Spectroscopic data on coexisting prehnite-pumpellyite and epidote-pumpellyite, The Canadian Mineralogist, 33, 67-75   [view file]

Menchetti S, Bonazzi P (1995) Monoclinic members of the epidote group: effects of the Al⇔Fe3+⇔Fe2+ substitution and of the entry of REE3+, Mineralogy and Petrology, 53, 133-153

Shannon R D, Shannon R C, Medenbach O, Fischer R X (2002) Refractive index and dispersion of fluorides and oxides, Journal of Physical and Chemical Reference Data, 31, 931-970   [view file]

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]

Ercit T S, Piilonen P C, Rowe R (2007) New mineral names, American Mineralogist, 92, 1539-1542   [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 (2011) Pumpellyite-, sursassite-, and epidote-type structures: common principles-individual features, Journal of Mineralogical and Petrological Sciences, 106, 211-222

MacDonald R, Bagiński B, Kartashov P M, Zozulya D, Dzierżanowski (2015) Interaction of rare-metal minerals with hydrothermal fluids: Evidence from quartz-epidote metasomatites of the Haldzan Buragtag Massif, Mongolian Altai, The Canadian Mineralogist, 53, 1015-1034