Clinohumite R040122

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Record 1 of 5  

Name: Clinohumite
RRUFF ID: R040122
Ideal Chemistry: Mg9(SiO4)4F2
Locality: Anzahamazonono, Madagascar
Source: University of Arizona Mineral Museum 13620 [view label]
Owner: RRUFF
Description: Orange-brown blebs embedded in calcite matrix
Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis
Mineral Group: [ Humite (20) ]
Quick search: [ All Clinohumite samples (5) ]
RRUFF ID: R040122.2
Sample Description: Microprobe Fragment
Measured Chemistry: (Mg0.96Fe0.02Ti0.01Ca0.01)9(SiO4)4(F0.59(OH)0.41)2
Sample Description: Sample is oriented, mounted onto a pin and polished
Pin ID: M01103
Orientation: Laser parallel to  -a*  (-1 0 0).     Fiducial mark perpendicular to laser is parallel to  b   [0 1 0].

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RRUFF ID: R040122
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
INFRARED SPECTRUM (Attenuated Total Reflectance) 
RRUFF ID: R040122.1
Sample Description: Powder
Instrument settings: SensIR Durascope on a Nicolet Magna 860 FTIR
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RRUFF ID: R040122.1
Sample Description: Powder
Cell Refinement Output: a: 4.7428(4)Å    b: 10.239(2)Å    c: 13.6355(8)Å
alpha: 100.83(1)°    beta: 90.°    gamma: 90.°   Volume: 650.4(1)Å3    Crystal System: monoclinic
  File Type Information Close
Calculated diffraction file.

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

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

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REFERENCES for Clinohumite

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]

Heuland H, Lévy A (1837) Cinquième Espece. Humite, in Description d'une collection de Minéraux Volume 2 Adolphe Richter et Compagnie London 281-282   [view file]

Des Cloizeaux A L O L (1876) Über den humit; nur der I. Typus ist rhombisch, die beiden andern sind monoklin, doch mit verschiedenen grundformen, Neues Jahrbuch für Mineralogie, Geologie und Palaontologie, 1876, 640-645   [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]

Robinson K, Gibbs G V, Ribbe P H (1973) The crystal structures of the humite minerals. IV. Clinohumite and titanoclinohumite, American Mineralogist, 58, 43-49   [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]

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]

Frost R L, Palmer S J, Bouzaid J M, Reddy B J (2007) A Raman spectroscopic study of humite minerals, Journal of Raman Spectroscopy, 38, 68-77