Kurnakovite R050393

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Record 2 of 2  

Name: Kurnakovite
RRUFF ID: R050393
Ideal Chemistry: MgB3O3(OH)5·5H2O
Locality: Kramer deposit, Boron, Kern County, California, USA
Source: Marcus Origlieri
Owner: RRUFF
Description: Colorless to gray cleavage fragment
Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis
Quick search: [ All Kurnakovite samples (2) ]
CHEMISTRY 
RRUFF ID: R050393.2
Sample Description: Microprobe fragment
Measured Chemistry: Mg1.00B3O3(OH)5·5H2O ; = lighter phase. The darker phase: (Mg0.97Al0.02◻0.01)Σ=1B3O3(OH)5·5H2O ; B not measured but estimated by stoichiometry
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R050393
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
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Raman Data (Processed)
RRUFF File
Raman Data (RAW) View Graph
RRUFF File
INFRARED SPECTRUM (Attenuated Total Reflectance) 
RRUFF ID: R050393.1
Instrument settings: SensIR Durascope on a Nicolet Magna 860 FTIR
Resolution:
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Infrared Data (Processed)
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POWDER DIFFRACTION 
RRUFF ID: R050393.1
Sample Description: Powder
Cell Refinement Output: a: 8.3457(9)Å    b: 10.6059(6)Å    c: 6.4463(4)Å
alpha: 98.895(6)°    beta: 108.943(7)°    gamma: 105.55(1)°   Volume: 501.31(4)Å3    Crystal System: triclinic
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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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Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

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Cell Refinement Data
Cell Refinement Output Data
DIF File
X-ray Data (XY - Processed)
RRUFF File
X-ray Data (XY - RAW) View Graph
RRUFF File
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REFERENCES for Kurnakovite

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]

Godlevsky M N (1940) Kurnakovite, a new borate, Comptes Rendus (Doklady) de l'Académie des Sciences de l'URSS, 28, 638-640   [view file]

Fleischer M (1941) New mineral names, American Mineralogist, 26, 293-294   [view file]

Razmanova Z P, Rumanova I M, Belov N V (1970) The crystal structure of kurnakovite Mg2B6O11·15H2O = 2Mg[B3O3 (OH)5]5H2O, Soviet Physics - Doklady, 14, 1139-1141

Corazza E (1974) The crystal structure of kurnakovite: a refinement, Acta Crystallographica, B30, 2194-2199

Li J, Xia S, Gao S (1995) FT-IR and Raman spectroscopic study of hydrated borates, Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy, 51, 519-532

Zhou B, Michaelis V K, Pan Y, Yao Y, Tait K T, Hyde B C, Wren J E C, Sherriff B L, Kroeker S (2012) Crystal structure refinements of borate dimorphs inderite and kurnakovite using 11B and 25Mg nuclear magnetic resonance and DFT calculations, American Mineralogist, 97, 1858-1865   [view file]

Gatta G D, Guastoni A, Lotti P, Guastella G, Fabelo O, Fernandez-Diaz M T (2019) A multi-methodological study of kurnakovite: A potential B-rich aggregate, American Mineralogist, 104, 1315-1322

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