Euclase R050623

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Record 1326 of 4216  

Name: Euclase
RRUFF ID: R050623
Ideal Chemistry: BeAlSiO4(OH)
Locality: Minas Gerais, Brazil
Source: Gemmological Center
Owner: RRUFF
Description: Colorless flattened prismatic crystal
Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis
Quick search: [ All Euclase samples (4) ]
RRUFF ID: R050623.2
Sample Description: Microprobe Fragment
Measured Chemistry: Be1.00Al1.00Si1.00O4(OH) ; Be not measured but estimated by stoichiometry
Sample Description: Unoriented sample

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RRUFF ID: R050623
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
INFRARED SPECTRUM (Attenuated Total Reflectance) 
RRUFF ID: R050623.1
Instrument settings: SensIR Durascope on a Nicolet Magna 860 FTIR
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RRUFF ID: R050623.1
Sample Description: Powder
Cell Refinement Output: a: 4.7789(3)Å    b: 14.3310(3)Å    c: 4.6323(1)Å
alpha: 90.°    beta: 100.301(2)°    gamma: 90.°   Volume: 312.14(2)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 Euclase

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]

Hauy R J (1792) De l´euclase, Observations sur la Physique, sur l’Histoire Naturelle et sur les Arts, 41, 155-156   [view file]

Biscoe J, Warren B E (1933) The structure of euclase HBeAlSiO5, Zeitschrift für Kristallographie, 86, 292-297   [view file]

Mrose M E, Appleman D E (1962) The crystal structures and crystal chemistry of väyrynenite, (Mn,Fe)Be(PO4)(OH), and euclase, AlBe(SiO4)·(OH), Zeitschrift für Kristallographie, 117, 16-36   [view file]

Hofmeister A M, Hoering T C, Virgo D (1987) Vibrational spectroscopy of of beryllium aluminosilicates: heat capacity calculations from band assignments, Physics and Chemistry of Minerals, 14, 205-224

Demartin F, Gramaccioli C M, Pilati T (1992) A first occurrence of euclase in the Swiss Alps: Discovery and refinement of the crystal structure, Schweizerische Mineralogische und Petrographische Mitteilungen, 72, 159-165

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]

Gilles-Guéry L, Galoisy L, Schnellrath J, Baptiste B, Calas G (2022) Mn3+ and the pink color of gem-quality euclase from northeast Brazil, American Mineralogist, 107, 489-494