Verplanckite R050265



Name: Verplanckite
RRUFF ID: R050265
Ideal Chemistry: Ba4Mn2+2Si4O12(OH,H2O)3Cl3
Locality: Big Creek, Fresno County, California, USA
Source: Marcus Origlieri
Owner: RRUFF
Description: Brownish orange disseminated grains
Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis.
CHEMISTRY 
RRUFF ID: R050265.2
Sample Description: Microprobe Fragment
Measured Chemistry: (Ba3.93Na0.06Ca0.01)Σ=4(Mn2+1.27Fe0.39Ti0.27Mg0.07)Σ=2(Si3.95Al0.05)Σ=4O12((H2O)1.57(OH)1.43)Σ=3(Cl2.17(OH)0.83)Σ=3; (OH) estimated by charge balance; H2O by difference
Microprobe Data File: [ Download Excel File ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented sample
Instrument settings: SPEX HR460 514nm @ 100% of 100 mW
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POWDER DIFFRACTION 
RRUFF ID: R050265.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 16.28(2)Å    b: 16.28(2)Å    c: 7.166(6)Å
alpha: 90°    beta: 90°    gamma: 120°   Volume: 1645.2(7)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 Verplanckite

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]

Alfors J T, Putman G W (1965) Revised chemical analyses of traskite, verplanckite and muirite from Fresno County, California, American Mineralogist, 50, 1500-1503   [view file]

Alfors J T, Stinson M C, Matthews R A, Pabst A (1965) Seven new barium minerals from eastern Fresno County, California, American Mineralogist, 50, 314-340   [view file]

Kampf A R, Khan A A, Baur W H (1973) Barium chloride silicate with an open framework: verplanckite, Acta Crystallographica, B29, 2019-2021