Ameghinite R060643

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Record 133 of 4034  


Name: Ameghinite
RRUFF ID: R060643
Ideal Chemistry: NaB3O3(OH)4
Locality: Tinkalayu mine, Salar del Hombre Muerto, Salta province, Argentina
Source: Michael Scott S100815 [view label]
Owner: RRUFF
Description: Colorless glassy
Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction.
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R060643
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 25% of 150mW
POWDER DIFFRACTION 
RRUFF ID: R060643.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 18.408(5)Å    b: 9.880(4)Å    c: 6.323(3)Å
alpha: 90°    beta: 104.40(2)°    gamma: 90°   Volume: 1113.8(7)Å3    Crystal System: monoclinic
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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 Ameghinite

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]

Aristarain L F, Hurlbut C S (1967) Ameghinite, Na2O·3B2O3·4H2O, a new borate from Argentina, American Mineralogist, 52, 935-946   [view file]

Dal Negro A, Martin Pozas J M, Ungaretti L (1975) The crystal structure of ameghinite, American Mineralogist, 60, 879-883   [view file]

Xiong Y, Kirkes L, Knox J, Marrs C (2017) Experimental determination of solubilities of sodium polyborates in MgCl2 solutions: Solubility constant of di-sodium hexaborate tetra-hydrate, and implications for the diagenetic formation of ameghinite, The Canadian Mineralogist, 55, 1001-1008