Trilithionite R040101

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Record 45 of 49  

Name: Trilithionite
RRUFF ID: R040101
Ideal Chemistry: KLi1.5Al1.5(Si3Al)O10F2
Locality: Zambezi Region, Mozambique
Source: University of Arizona Mineral Museum 13619 [view label]
Owner: RRUFF
Description: Aggregate of purple hexagonal plates, polytype is 2M1
Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis
Mineral Group: [ mica (49) ]
Quick search: [ All Trilithionite samples (4) ]
CHEMISTRY 
RRUFF ID: R040101.2
Sample Description: Microprobe Fragment
Measured Chemistry: (K0.84Li0.13Na0.02)(Li0.54Al0.44Mn0.02)3(Si0.82Al0.18)4O10F2.00
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Sample is oriented, mounted onto a pin and polished
Pin ID: L00533
Orientation: Laser parallel to  -b*  (0 -1 0).     Fiducial mark perpendicular to laser is parallel to  c   [0 0 1].
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Direction of polarization of laser relative to fiducial mark:
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R040101
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
INFRARED SPECTRUM (Attenuated Total Reflectance) 
RRUFF ID: R040101.1
Instrument settings: SensIR Durascope on a Nicolet Magna 860 FTIR
Resolution:
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POWDER DIFFRACTION 
RRUFF ID: R040101.1
Sample Description: Powder, cell parameters are from single crystal
Cell Refinement Output: a: 5.189(4)Å    b: 9.000(6)Å    c: 20.13(1)Å
alpha: 90°    beta: 95.65(4)°    gamma: 90°   Volume: 935.5(4)Å3    Crystal System: monoclinic
  File Type Information Close
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 Trilithionite

American Mineralogist Crystal Structure Database Record: [view record]

Tlili A, Smith D C, Beny J M, Boyer H (1989) A Raman microprobe study of natural micas, Mineralogical Magazine, 53, 165-179   [view file]

Rieder M, Cavazzini G, D’Yakonov Y S, Frank-Kamenetskii V A, Gottardt G, Guggenheim S, Koval P V, Muller G, Neiva A M R, Radoslovich E W, Robert J L, Sassi F P, Takeda H, Weiss Z, Wones D R (1998) Nomenclature of the micas, The Canadian Mineralogist, 36, 905-912   [view file]

Brigatti M F, Caprilli E, Malferrari D, Medici L, Poppi L (2005) Crystal structure and chemistry of trilithionite-2M2 and polylithionite-2M2, European Journal of Mineralogy, 17, 475-481

Marchal K L, Simmons W B, Falster A U, Webber K L, Roda-Robles E (2014) Geochemistry, mineralogy, and evolution of Li-Al micas and feldspars from the Mount Mica pegmatite, Maine, USA, The Canadian Mineralogist, 52, 221-233

Breiter K, Vaňková M, Galiová M V, Korbelová Z, Kanický V (2017) Lithium and trace-element concentrations in trioctahedral micas from granites of different geochemical types measured via laser ablation ICP-MS, Mineralogical Magazine, 81, 15-33