Colemanite R050331

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Record 893 of 4144  

Name: Colemanite
RRUFF ID: R050331
Ideal Chemistry: CaB3O4(OH)3·H2O
Locality: Thompson mine, Death Valley, Inyo County, California, USA
Source: California Institute of Technology W-20148
Owner: RRUFF
Description: Colorless fragment
Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis
Quick search: [ All Colemanite samples (3) ]
RRUFF ID: R050331.2
Sample Description: Microprobe Fragment
Measured Chemistry: Ca1.00B3.00O4(OH)3┬ĚH2O ; B not measured but assumed by stoichiometry and charge balance.
Microprobe Data File: [ Download Excel File ]
Sample Description: Unoriented sample

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RRUFF ID: R050331
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
INFRARED SPECTRUM (Attenuated Total Reflectance) 
RRUFF ID: R050331.1
Instrument settings: SensIR Durascope on a Nicolet Magna 860 FTIR
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RRUFF ID: R050331.1
Sample Description: Powder
Cell Refinement Output: a: 8.7253(6)Å    b: 11.2550(5)Å    c: 6.0959(3)Å
alpha: 90.°    beta: 110.145(6)°    gamma: 90.°   Volume: 562.02(4)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.

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

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REFERENCES for Colemanite

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]

Hanks H G (1883) Report on the borax deposits of California and Nevada, Borax minerals and those containing boracic acid in small quantities, 3, 81-89   [view file]

Jackson A W (1884) On colemanite, a new borate of lime, American Journal of Science, 28, 447-448   [view file]

Meixner, H (1953) Einige Boratminerale (Colemanit und Tertschit, ein neues Mineral) aus der Türkei, Fortschritte der Mineralogie, 31, 39-42

Burns P C, Hawthorne F C (1993) Hydrogen bonding in colemanite: an x-ray and structure-energy study, The Canadian Mineralogist, 31, 297-304   [view file]

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]

Lin J, Pan Y, Chen N, Mao M, Li R, Feng R (2011) Arsenic incorporation in colemanite from borate deposits: Data from ICP-MS, μ-SXRF, XAFS and EPR analyses, The Canadian Mineralogist, 49, 809-822   [view file]