Fenaksite R080135



Name: Fenaksite
RRUFF ID: R080135
Ideal Chemistry: KNaFe2+Si4O10
Locality: Yukspor Mountain, Khibiny Massif, Kola Peninsula, Russia
Source: Michael Scott S105088 [view label]
Owner: RRUFF
Description: Light yellow, transparent, elongated prismatic to platy crystals, associated with dark gray to colorless delhayelite (R070096), brown lamprophyllite, elongated blue aegerine, and grayish brown lomonosovite
Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction.
Mineral Group: [ Litidionite (2) ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R080135
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
POWDER DIFFRACTION 
RRUFF ID: R080135.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 6.965(2)Å    b: 8.250(4)Å    c: 9.928(5)Å
alpha: 114.52(2)°    beta: 79.99(2)°    gamma: 116.01(2)°   Volume: 466.4(2)Å3    Crystal System: triclinic
  File Type Information Close
Calculated diffraction file.

  File Type Information Close
Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

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REFERENCES for Fenaksite

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]

Dorfman M D, Rogachev D D, Goroshchenko Z I, Mokretsova A V (1959) Fenaksite - a new mineral, Trudy Mineralogicheskogo Muzeya Akademiya Nauk SSSR, 9, 152-157   [view file]

Fleischer M (1960) New mineral names, American Mineralogist, 45, 252-258   [view file]

International Mineralogical Association (1962) International Mineralogical Association: Commission on new minerals and mineral names, Mineralogical Magazine, 33, 260-263   [view file]

Golovachev V P, Drozdov Y N, Kuz'min E A, Belov N V (1971) The crystal structure of phenaxite FeNaK(Si4O10)(KNaFe[Si4O10]), Soviet Physics - Doklady, 15, 902-904

Kawamura K, Kawahara A (1977) The crystal structure of synthetic copper sodium silicate: CuNa2Si4O10, Acta Crystallographica, B33, 1071-1075

Rozhdestvenskaya I V, Bannova I I, Nikishova L V, Soboleva T V (2004) The crystal structure of fenaksite K2Na2Fe2Si8O20, Doklady Earth Sciences, 398, 1029-1033

Piilonen P C, Grew E S, Ercit T S (2005) New mineral names, American Mineralogist, 90, 1227-1233   [view file]