Evanichite R220006

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Record 1316 of 4131  


Name: Evanichite
RRUFF ID: R220006
Ideal Chemistry: Pb6Cr3+(Cr6+O4)2(SO4)(OH)7FCl
Locality: Mammoth-Saint Anthony mine, St. Anthony Deposit, Tiger, Mammoth District, Pinal County, Arizona, USA
Source: Daniel Evanich [view label] [view label]
Owner: Daniel Evanich
Description: A single group of subparallel orange-brown crystals. Associated with quartz, georgerobinsonite, bobmeyerite, pinalite, diaboleite, boleite, leadhillite, caledonite, and cerussite. Type sample
Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis.
Mineral Group: [ Not in a structural group (129) ]
CHEMISTRY 
RRUFF ID: R220006
Sample Description: Single crystal, powder profile is calculated
Measured Chemistry: Pb5.91(Cr3+0.81Fe3+0.11)Σ0.92(Cr6+O4)2(S1.07O4)(OH)7F0.99Cl1.05
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented Raman on the primary sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R220006
Wavelength:
Sample Description: Unoriented Raman on the primary sample
Instrument settings: Thermo Almega XR 532nm @ 13% of 150mW
POWDER DIFFRACTION 
RRUFF ID: R220006
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 7.7588(5)Å    b: 7.7588(5) Å    c: 9.6161(6)Å
alpha: 90°    beta: 90°    gamma: 120°   Volume: 501.32(6)Å3    Crystal System: hexagonal
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