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Magnesiocarpholite R140873

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Name: Magnesiocarpholite
RRUFF ID: R140873
Ideal Chemistry: MgAl2Si2O6(OH)4
Locality: Sengelbach valley, Biesenrode, Wippra Metamorphic Zone, Harz, Saxony-Anhalt, Germany
Source: Stefan Schorn [view label]
Owner: RRUFF
Description: Green to gray fibers
Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction.
Mineral Group: [ Carpholite (3) ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented Raman on the primary sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R140873
Wavelength:
Sample Description: Unoriented Raman on the primary sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
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Raman Data (Processed)
RRUFF File
POWDER DIFFRACTION 
RRUFF ID: R140873.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 13.795(5)Å    b: 20.234(7)Å    c: 5.110(1)Å
alpha: 90°    beta: 90°    gamma: 90°   Volume: 1426.4(4)Å3    Crystal System: orthorhombic
  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.

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REFERENCES for Magnesiocarpholite

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]

Goffé B, Goffé-Urbano G, Saliot P (1973) Sur la présence d'une variété magnésienne de ferrocarpholite en Vanoise (Alpes françaises), Comptes Rendus de l'Académie des Sciences de Paris, 277, 1965-1968

Goffé B (1977) Présence de cookéite dans les bauxites métamorphiques du Dogger de la Vanoise (Savoie), Bulletin de la Société Française de Minéralogie et de Cristallographie, 100, 254-257   [view file]

Fleischer M, Cabri L J, Pabst A (1980) New mineral names, American Mineralogist, 65, 406-408   [view file]

Viswanathan K (1981) The crystal structure of a Mg-rich carpholite, American Mineralogist, 66, 1080-1085   [view file]

Chopin C, Schreyer W (1983) Magnesiocarpholite and magnesiochloritoid: two index minerals of pelitic blueschists and their preliminary phase relations in the model system MgO-Al2O3-SiO2-H2O, American Journal of Science, 283A, 72-96

Fuchs Y, Mellini M, Memmi I (2001) Crystal-chemistry of magnesiocarpholite: controversial X-ray diffraction, Mössbauer, FTIR and Raman results, European Journal of Mineralogy, 13, 533-543

Basso R, Carbone C (2010) Relationships between crystal data and crystal chemistry of carpholite-group minerals, Periodico di Mineralogia, 79, 91-98