Lefontite R140539

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Record 1879 of 3514  


Name: Lefontite
RRUFF ID: R140539
Ideal Chemistry: Fe2Al2Be(PO4)2(OH)6
Locality: Palermo No. 1 mine, Groton, New Hampshire, USA
Source: Benjamin N. Schumer
Owner: RRUFF
Description: Dark or reddish brown prismatic crystals, associated with grey bladed eosphorite, colorless or white prismatic palermoite (R120141), and natropalermoite (130092).
Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis.
Mineral Group: [ Childrenite (10) ]
Quick search: [ All Lefontite samples (3) ]
CHEMISTRY 
RRUFF ID: R140539.2
Sample Description: Microprobe fragment
Measured Chemistry: (Fe2+1.22Mn0.48Ca0.16Mg0.05)Σ=1.91Al1.91Be0.97(PO4)2(OH)6.50 ; Be2+ needs to be analyzed by Icp-ms
Microprobe Data File: [ Download Excel File ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented Raman on the primary sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R140539
Wavelength:
Sample Description: Unoriented Raman on the primary sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
POWDER DIFFRACTION 
RRUFF ID: R140539.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 6.9987(5)Å    b: 10.5061(8)Å    c: 13.1416(10)Å
alpha: 90°    beta: 90°    gamma: 90°   Volume: 966.3(2)Å3    Crystal System: orthorhombic
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REFERENCES for Lefontite

Williams P A, Hatert F, Pasero M, Mills S J (2015) IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) Newsletter 23. New minerals and nomenclature modifications approved in 2014 and 2015, Mineralogical Magazine, 79, 51-58   [view file]