Macfallite R060391
Name: Macfallite
RRUFF ID: R060391
Ideal Chemistry: Ca2Mn3+3(SiO4)(Si2O7)(OH)3
Locality: near Manganese Lake, Copper Harbor, Keweenaw County, Michigan, USA
Source: Michael Scott S100092 [view label]
Owner: RRUFF
Description: Reddish-brown radial aggregate of bladed crystals associated with braunite, quartz, calcite
Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction.
CHEMISTRY 
RRUFF ID: R060391.2
Sample Description: Microprobe Fragment
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented sample.
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R060391
Wavelength:
Sample Description: Unoriented sample.
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
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Raman Data (Processed)
RRUFF File
POWDER DIFFRACTION 
RRUFF ID: R060391.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 10.20(1)Å    b: 6.085(5)Å    c: 8.966(9)Å
alpha: 90°    beta: 110.91(5)°    gamma: 90°   Volume: 519.7(5)Å3    Crystal System: monoclinic
  File Type Information Close
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
RRUFF File
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REFERENCES for Macfallite

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]

Moore P B, Ito J, Steele I M (1979) Macfallite and orientite: calcium manganese (III) silicates from upper Michigan, Mineralogical Magazine, 43, 325-331   [view file]

Fleischer M, Cabri L J, Pabst A (1980) New mineral names, American Mineralogist, 65, 406-408   [view file]

Moore P B, Shen J, Araki T (1985) Crystal chemistry of the 2∞[M3+2Φ2(TO4)2] sheet: structural principles and crystal structures of ruizite, macfallite and orientite, American Mineralogist, 70, 171-181   [view file]

Nagashima M, Rahmoun N S, Alekseev E V, Geiger C A, Armbruster T, Akasaka M (2008) Crystal chemistry of macfallite: Relationships to sursassite and pumpellyite, American Mineralogist, 93, 1851-1857   [view file]

Nagashima M (2011) Pumpellyite-, sursassite-, and epidote-type structures: common principles-individual features, Journal of Mineralogical and Petrological Sciences, 106, 211-222