Chondrodite R040016


Name: Chondrodite
RRUFF ID: R040016
Ideal Chemistry: Mg5(SiO4)2F2
Locality: Vastmanland, Kafveltorp, Sweden
Source: University of Arizona Mineral Museum 4521 [view label]
Owner: RRUFF
Description: Deep red single crystals embedded in matrix
Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis
Mineral Group: [ Humite (21) ]
Quick search: [ All Chondrodite samples (2) ]
CHEMISTRY 
RRUFF ID: R040016.2
Sample Description: Microprobe Fragment
Measured Chemistry: (Mg4.61Fe0.31Mn0.07Ca0.01)Σ=5(Si1.00O4)2(F1.16(OH)0.84)Σ=2
Microprobe Data File: [ Download Excel File ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Sample is oriented, mounted onto a pin and polished
Pin ID: M00452
Orientation: Laser parallel to  -a   [-1 0 0].     Fiducial mark perpendicular to laser is parallel to  b*  (0 1 0).
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Direction of polarization of laser relative to fiducial mark:
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R040016
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
INFRARED SPECTRUM (Attenuated Total Reflectance) 
RRUFF ID: R040016.1
Sample Description: Powder
Instrument settings: SensIR Durascope on a Nicolet Magna 860 FTIR
Resolution:
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POWDER DIFFRACTION 
RRUFF ID: R040016.1
Sample Description: Powder
Cell Refinement Output: a: 4.7370(2)Å    b: 10.2789(6)Å    c: 7.8481(6)Å
alpha: 109.085(5)°    beta: 90.°    gamma: 90.°   Volume: 361.13(3)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.

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

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REFERENCES for Chondrodite

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]

d'Ohsson C M (1817) Undersokning af någre mineralier, Kongliga Svenska Vetenskaps-Akademiens Handlingar, 1817, 206-210   [view file]

Gibbs G V, Ribbe P H, Anderson C P (1970) The crystal structures of the humite minerals II. chondrodite, American Mineralogist, 55, 1182-1194   [view file]

Ribbe P H, Gibbs G V (1971) Crystal structures of the humite minerals: III. Mg/Fe ordering in humite and its relation to other ferromagnesian silicates, American Mineralogist, 56, 1155-1173   [view file]

Fujino K, Takèuchi Y (1978) Crystal chemistry of titanian chondrodite and titanian clinohumite of high-pressure origin, American Mineralogist, 63, 535-543   [view file]

Winter G A, Essene E J, Peacor D R (1983) Mn-humites from Bald Knob, North Carolina: Mineralogy and phase equilibria, American Mineralogist, 68, 951-959   [view file]

Cynn H, Hofmeister A M, Burnley P C, Navrotsky A (1996) Thermodynamic properties and hydrogen speciation from vibrational spectra of dense hydrous magnesium silicates, Physics and Chemistry of Minerals, 23, 361-376   [link]

Lin C C, Liu L G, Irifune T (1999) High-pressure Raman spectroscopic study of chondrodite, Physics and Chemistry of Minerals, 26, 226-233

Mernagh T, Liu L, Lin C (1999) Raman spectra of chondrodite at various temperatures, Journal of Raman Spectroscopy, 30, 963-969   [link]

Lin C C, Liu L G, Mernagh T P, Irifune T (2000) Raman spectroscopic study of hydroxyl-clinohumite at various pressures and temperatures, Physics and Chemistry of Minerals, 27, 320-331   [link]

Lager G A, Ulmer P, Miletich R, Marshall W G (2001) O-D···O bond geometry in OD-chondrodite, American Mineralogist, 86, 176-180   [view file]

Berry A J, James M (2002) Refinement of hydrogen positions in natural chondrodite by powder neutron diffraction: implications for the stability of humite minerals, Mineralogical Magazine, 66, 441-449   [view file]

Liu Z X, Lager G A, Hemley R J, Ross N L (2003) Synchrotron infrared spectroscopy of OH-chondrodite and OH-clinohumite at high pressure, American Mineralogist, 88, 1412-1415   [view file]

Kuribayashi T, Kagi H, Tanaka M, Akizuki M, Kudoh Y (2004) High-pressure single crystal X-ray diffraction and FT-IR observation of natural chondrodite and synthetic OH-chodrodite, Journal of Mineralogical and Petrological Sciences, 99, 118-129   [view file]

Kunz M, Lager G A, Burgi H B, Fernandez-Diaz M T (2006) High-temperature single-crystal neutron diffraction study of natural chondrodite, Physics and Chemistry of Minerals, 33, 17-27

Giebel R J, Gauert C D K, Marks M A W, Costin G, Markl G (2017) Multi-stage formation of REE minerals in the Palabora Carbonatite Complex, South Africa, American Mineralogist, 102, 1218-1233