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Olmiite R050144

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Record 1 of 2  


Name: Olmiite
RRUFF ID: R050144
Ideal Chemistry: CaMn[SiO3(OH)](OH)
Locality: N'Chwaning II mine, Kuruman, South Africa
Source: Rock Currier
Owner: RRUFF
Description: Tan colored prismatic crystals associated with fibrous bultfonteinite, R050088
Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis
Quick search: [ All Olmiite samples (2) ]
CHEMISTRY 
RRUFF ID: R050144.2
Sample Description: Microprobe fragment
Measured Chemistry: Ca1.00(Mn0.98Ca0.02)(Si1.00O3OH)(OH)
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented sample
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Direction of polarization of laser relative to fiducial mark:
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R050144
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 20% of 150mW
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Raman Data (RAW) View Graph
RRUFF File
INFRARED SPECTRUM (Attenuated Total Reflectance) 
RRUFF ID: R050144.1
Sample Description: Powder
Instrument settings: SensIR Durascope on a Nicolet Magna 860 FTIR
Resolution:
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Infrared Data (Processed)
RRUFF File
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RRUFF ID: R050144.1
Sample Description: Powder
Instrument settings: PIKE GladiATR - Far-IR on a Nicolet Magna 860 FTIR
Resolution:
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Infrared Data (Processed)
RRUFF File
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POWDER DIFFRACTION 
RRUFF ID: R050144.1
Sample Description: Powder
Cell Refinement Output: a: 9.234(1)Å    b: 9.068(3)Å    c: 10.361(1)Å
alpha: 90°    beta: 90°    gamma: 90°   Volume: 867.6(0)Å3    Crystal System: orthorhombic
  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.

  File Type Information Close
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 Olmiite

American Mineralogist Crystal Structure Database Record: [view record]

Bonazzi P, Bindi L, Medenbach O, Pagano R, Lampronti G I, Menchetti S (2007) Olmiite, CaMn[SiO3(OH)](OH), the Mn-dominant analogue of poldervaartite, a new mineral species from Kalahari manganese fields (Republic of South Africa), Mineralogical Magazine, 71, 193-201   [view file]