Genthelvite R080134

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Name: Genthelvite
RRUFF ID: R080134
Ideal Chemistry: Be3Zn4(SiO4)3S
Locality: Rockport, Essex County, Massachusetts, USA
Source: James Shigley [view label]
Owner: RRUFF
Description: Massive pink, exhibiting greasy luster, associated with albite
Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction.
Mineral Groups: [ cancrinite-sodalite (37) ] [ sodalite (24) ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R080134
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
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Raman Data (Processed)
RRUFF File
Raman Data (RAW) View Graph
RRUFF File
POWDER DIFFRACTION 
RRUFF ID: R080134.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 8.150(1)Å    b: 8.150(1)Å    c: 8.150(1)Å
alpha: 90°    beta: 90°    gamma: 90°   Volume: 541.25(4)Å3    Crystal System: cubic
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Calculated diffraction file.

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Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

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DIF File
X-ray Data (XY - RAW) View Graph
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REFERENCES for Genthelvite

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]

Glass J J, Jahns R H, Stevens R E (1944) Helvite and danalite from New Mexico and the helvite group, American Mineralogist, 29, 163-191   [view file]

Fleischer M (1945) New mineral names, American Mineralogist, 30, 548-550   [view file]

Kingsbury A W G (1961) Beryllium minerals in Cornwall and Devon: helvine, genthelvite, and danalite, Mineralogical Magazine, 32, 921-940   [view file]

Morgan W C, (1967) Genthelvite and bertrandite from the Cairngorm Mountains, Scotland, Mineralogical Magazine, 36, 60-63   [view file]

Dunn P J (1976) Genthelvite and the helvine group, Mineralogical Magazine, 40, 627-636   [view file]

Hassan I, Grundy H D (1984) The crystal structures of sodalite-group minerals, Acta Crystallographica, B40, 6-13

Hassan I, Grundy H D (1985) The crystal structures of helvite group minerals, (Mn,Fe,Zn)8(Be6Si6O24)S2, American Mineralogist, 70, 186-192   [view file]

Burt D M (1988) Stability of genthelvite, Zn4(BeSiO4)3S: an exercise in chalcophilicity using exchange operators, American Mineralogist, 73, 1384-1394   [view file]

Finch A A (1990) Genthelvite and willemite, zinc minerals associated with alkaline magmatism from the Motzfeldt centre, South Greenland, Mineralogical Magazine, 54, 407-412   [view file]

Hettmann K, Wenzel T, Marks M, Markl G (2012) The sulfur speciation in S-bearing minerals: New constraints by a combination of electron microprobe analysis and DFT calculations with special reference to sodalite-group minerals, American Mineralogist, 97, 1653-1661   [view file]

Zito G, Hanson S L (2017) Genthelvite overgrowths on danalite cores from a pegmatite miarolitic cavity in Cheyenne Canyon, El Paso County, Colorado, The Canadian Mineralogist, 55, 195-206