Julgoldite-(Fe2+) R070725

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Name: Julgoldite-(Fe2+)
RRUFF ID: R070725
Ideal Chemistry: Ca2Fe2+Fe3+2(Si2O7)(SiO4)(OH)2·H2O
Locality: Khandivali Quarry (Kandivali Quarry), Mumbai District (Bombay District), Maharashtra, India
Source: Michael Scott S104176 [view label]
Owner: RRUFF
Description: Clusters of black blades associated with pale green bladed prehnite and quartz
Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis
Mineral Group: [ Pumpellyite (6) ]
CHEMISTRY 
RRUFF ID: R070725.2
Sample Description: Microprobe Fragment
Measured Chemistry: Ca2.00(Fe2+0.86Mg0.14)Σ=1(Fe3+1.67Al0.33)Σ=2(Si2.00O7)(Si1.00O4)(OH)2·H2O; OH by charge balance = light; Ca2.00(Fe2+0.82Mg0.18)Σ=1(Fe3+1.44Al0.58)Σ=2(Si2.00O7)(Si1.00O4)(OH)2·H2O = darker
Microprobe Data File: [ Download Excel File ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R070725
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
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Raman Data (Processed)
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Raman Data (RAW) View Graph
RRUFF File
POWDER DIFFRACTION 
RRUFF ID: R070725.1
Sample Description: Powder, mixed with quartz
Cell Refinement Output: a: 8.912(1)Å    b: 6.0661(6)Å    c: 19.380(2)Å
alpha: 90°    beta: 97.586(9)°    gamma: 90°   Volume: 1038.50(9)Å3    Crystal System: monoclinic
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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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Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

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Cell Refinement Data
Cell Refinement Output Data
DIF File
X-ray Data (XY - Processed)
RRUFF File
X-ray Data (XY - RAW) View Graph
RRUFF File
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REFERENCES for Julgoldite-(Fe2+)

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]

Moore P B (1967) Eleven new minerals from Langban, Sweden, The Canadian Mineralogist, 9, 301-301   [view file]

Fleischer M (1971) New mineral names, American Mineralogist, 56, 2156-2159   [view file]

Moore P B (1971) Julgoldite, the Fe+2 - Fe+3 dominant pumpellyite, a new mineral from Långban, Sweden, Lithos, 4, 93-99

Allmann R, Donnay G (1973) The crystal structure of julgoldite, Mineralogical Magazine, 39, 271-281   [view file]

Passaglia E, Gottardi G (1973) Crystal chemistry and nomenclature of pumpellyites and julgoldites, The Canadian Mineralogist, 12, 219-223   [view file]

Nagashima M, Cametti G, Armbruster T (2018) Crystal chemistry of julgoldite, a mineral series of the pumpellyite group: re-investigation of Fe distribution and hydrogen-bonding, European Journal of Mineralogy, 30, 721-731