Agakhanovite-(Y) R230012

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Record 28 of 1542  

Name: Agakhanovite-(Y)
RRUFF ID: R230012
Ideal Chemistry: YCa◻2KBe3Si12O30
Locality: Heftetjern pegmatite, Tørdal, Southern Norway
Source: Frank Hawthorne
Owner: Frank Hawthorne
Description: Type sample. Colorless hexagonal prisms. Data from Hawthorne et al (2014)
Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis
Mineral Group: [ Milarite (18) ]
CHEMISTRY 
RRUFF ID: R230012.2
Sample Description: Microprobe Fragment
Measured Chemistry: (Y0.89Yb0.01Ca1.06)[(H2O)0.92Na0.02]K1.00(Be2.93Al0.07)Si12.02O30
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented sample
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POWDER DIFFRACTION 
RRUFF ID: R230012
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 10.342(1)Å    b: 10.342(1)Å    c: 13.768(3)Å
alpha: 90°    beta: 90°    gamma: 120°   Volume: 1275.5(4)Å3    Crystal System: hexagonal
  File Type Information Close
Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

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REFERENCES for Agakhanovite-(Y)

American Mineralogist Crystal Structure Database Record: [view record]

Williams P A, Hatert F, Pasero M, Mills S J (2013) IMA Commission on new minerals, nomenclature and classification (CNMNC) Newsletter 18. New minerals and nomenclature modifications approved in 2013, Mineralogical Magazine, 77, 3249-3258   [view file]

Hawthorne F C, Abdu Y A, Ball N A, Černý P, Kristiansen R (2014) Agakhanovite-(Y), ideally (YCa)◻2KBe3Si12O30, a new milarite-group mineral from the Heftetjern pegmatite, Tørdal, Southern Norway: description and crystal structure, American Mineralogist, 99, 2084-2088   [view file]

Gagné O C, Hawthorne F C (2016) Chemographic exploration of the milarite-type structure, The Canadian Mineralogist, 54, 1229-1247