Osumilite R060385

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Record 9 of 18  


Name: Osumilite
RRUFF ID: R060385
Ideal Chemistry: KFe2(Al5Si10)O30
Locality: Funtanafigu Quarry, Monte Arci, near Oristano, Sardinia
Source: Michael Scott S100097 [view label]
Owner: RRUFF
Description: Black tabular distorted hexagonal crystals associated with colorless tridymite
Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis.
Mineral Group: [ Milarite (18) ]
CHEMISTRY 
RRUFF ID: R060385.2
Sample Description: Microprobe Fragment
Measured Chemistry: (K0.72Na0.15Ca0.01)Σ=0.88(Fe2+1.07Mg0.93Mn0.06)Σ=2.06(Al2.69Fe3+0.31)Σ=3(Si10.28Al1.72)Σ=12O30
Microprobe Data File: [ Download Excel File ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Sample is oriented and mounted on a pin.
Pin ID: M01656
Orientation: Laser parallel to  a*  (1 0 0).     Fiducial mark perpendicular to laser is parallel to  c   [0 0 1].
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Direction of polarization of laser relative to fiducial mark:
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R060385
Wavelength:
Sample Description: Unoriented Raman on the primary sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
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Raman Data (RAW) View Graph
RRUFF File
POWDER DIFFRACTION 
RRUFF ID: R060385.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 10.141(1)Å    b: 10.141(1)Å    c: 14.303(1)Å
alpha: 90°    beta: 90°    gamma: 120°   Volume: 1273.8(3)Å3    Crystal System: hexagonal
  File Type Information Close
Calculated diffraction file.

  File Type Information Close
Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

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DIF File
X-ray Data (XY - Processed)
RRUFF File
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REFERENCES for Osumilite

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]

Miyashiro A (1953) Osumilite, a new mineral, and cordierite in volcanic rocks, Proceedings of the Japan Academy, 29, 321-323   [view file]

Fleischer M (1954) New mineral names, American Mineralogist, 39, 690-692   [view file]

Miyashiro A (1956) Osumilite, a new silicate mineral, and its crystal structure, American Mineralogist, 41, 104-116   [view file]

Chinner G A, Dixon P D (1973) Irish osumilite, Mineralogical Magazine, 39, 189-192   [view file]

Hesse K F, Seifert F (1982) Site occupancy refinement of osumilite, Zeitschrift für Kristallographie, 160, 179-182   [view file]

Armbruster T, Oberhänsli R (1988) Crystal chemistry of double-ring silicates: structural, chemical, and optical variation in osumilites, American Mineralogist, 73, 585-594   [view file]

Seryotkin Y V, Sokol E V, Bakakin V V, Likhacheva A Y (2008) Pyrometamorphic osumilite: occurrence, paragenesis, and crystal structure as compared to cordierite, European Journal of Mineralogy, 20, 191-198

Gagné O C, Hawthorne F C (2016) Chemographic exploration of the milarite-type structure, The Canadian Mineralogist, 54, 1229-1247