Hydroboracite R060713

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Name: Hydroboracite
RRUFF ID: R060713
Ideal Chemistry: CaMg[B3O4(OH)3]2·3H2O
Locality: Sijes, Salta Province, Argentina
Source: Bob Jenkins [view label]
Owner: RRUFF
Description: Divergent groups of colorless bladed crystals that lie somewhat parallel with each other
Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis.
Quick search: [ All Hydroboracite samples (2) ]
CHEMISTRY 
RRUFF ID: R060713.2
Sample Description: Microprobe Fragment
Measured Chemistry: (Ca0.93Mg0.07)Σ=1Mg1.00B6O8(OH)6·3H2O ; B, H not measured but estimated by stoichiometry
Microprobe Data File: [ Download Excel File ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R060713
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
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Raman Data (RAW) View Graph
RRUFF File
POWDER DIFFRACTION 
RRUFF ID: R060713.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 11.759(2)Å    b: 6.682(1)Å    c: 8.226(1)Å
alpha: 90°    beta: 102.601(9)°    gamma: 90°   Volume: 630.8(2)    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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DIF File
X-ray Data (XY - RAW) View Graph
RRUFF File
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REFERENCES for Hydroboracite

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]

Hess H (1834) Der hydroboracit, eine neue mineralspecies, Annalen der Physik und Chemie, 31, 49-53   [view file]

Rumanova I M, Ashirov A (1964) Determination of the crystal structure of hydroboracite Ca Mg[B3O4(OH)3]2·3H2O, Soviet Physics - Crystallography, 8, 665-679

Sabelli C, Stoppioni A (1978) Refinement of the crystal structure of hydroboracite, The Canadian Mineralogist, 16, 75-80   [view file]

Grice J D, Gault R A, Van Velthuizen J (2005) Borate minerals of the Penobsquis and Millstream deposits, southern New Brunswick, Canada, The Canadian Mineralogist, 43, 1469-1487   [view file]