Boracite R060009

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Name: Boracite
RRUFF ID: R060009
Ideal Chemistry: Mg3B7O13Cl
Locality: Luneberg, Hannover, Germany
Source: University of Arizona Mineral Museum [view label]
Owner: RRUFF
Description: Adamantine gray cubo-octahedral single crystals in anhydrite
Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis.
Mineral Group: [ Boracite (9) ]
Quick search: [ All Boracite samples (2) ]
CHEMISTRY 
RRUFF ID: R060009.2
Sample Description: Microprobe Fragment
Measured Chemistry: (Mg2.98Fe2+0.02)Σ=3B7O13Cl1.00 ; B not analyzed but estimated by diifference and 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: R060009
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
POWDER DIFFRACTION 
RRUFF ID: R060009.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 8.540(8)Å    b: 8.520(8)Å    c: 12.071(7)Å
alpha: 90°    beta: 90°    gamma: 90°   Volume: 878.3(8)Å3    Crystal System: orthorhombic
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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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REFERENCES for Boracite

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]

Hoffmann C A S (1789) Mineralsystem des Herrn Inspektor Werners mit dessen Erlaubnis herausgegeben von C A S Hoffmann, Bergmannisches Journal, 1, 369-398   [view file]

Werner A G (1789) 36) Boracit, Bergmannisches Journal, 1, 393-394   [view file]

Mehmel M (1932) Kristallstrukturelle Untersuchungen am Borazit, Fortschritte der Mineralogie, 17, 436-438

Ito T, Morimoto N, Sadanaga R (1951) The crystal structure of boracite, Acta Crystallographica, 4, 310-316

Kühn R, Schaacke I (1955) Vorkommen und Analyse der Boracit- und Ericaitkristalle aus dem Salzhorst von Wathlingen-Hänigsen, Kali und Steinsalz, 1, 33-42

Dowty E, Clark J R (1973) Crystal-structure refinements for orthorhombic boracite, Mg3B7O13Cl, and a trigonal, iron-rich analogue, Zeitschrift für Kristallographie, 138, 64-99   [view file]

Nelmes R J (1974) Structural studies of boracites. A review of the properties of boracites, Journal of Physics C: Solid State Physics, 7, 3841-3855

Burns P C (1995) X-ray powder diffraction data for the identification of boracite-group minerals, Powder Diffraction, 10, 250-260

Burns P C, Carpenter M A (1996) Phase transitions in the series boracite – trembathite – congolite: phase relations, The Canadian Mineralogist, 34, 881-892   [view file]

Burns P C, Carpenter M A (1997) Phase transitions in the series boracite – trembathite – congolite: an infrared spectroscopic study, The Canadian Mineralogist, 35, 189-202   [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]

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]

Iliev M N, Hadjiev V G, Mendoza M E, Pascual J (2007) Raman spectroscopy of multiferroic trigonal boracite Co3B7O13Cl, Physical Review B, 76, 214112-5

Xiong, Y (2020) Experimental determination of the solubility constant of kurnakovite, MgB3O3(OH)5·5H2O, American Mineralogist, 105, 977-983