Warwickite R050674
Name: Warwickite
RRUFF ID: R050674
Ideal Chemistry: (Mg,Ti,Fe,Cr,Al)2O(BO3)
Locality: Edenville, Orange County, New York, USA
Source: University of Arizona Mineral Museum 3053 [view label]
Owner: RRUFF
Description: Black prismatic crystals embedded in matrix
Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis
CHEMISTRY 
RRUFF ID: R050674.2
Sample Description: Microprobe fragment
Measured Chemistry: (Mg1.23Ti0.39Fe2+0.17Al0.19Fe3+0.02)Σ=2O(BO3) ; B not measured but estimated by difference and charge balance
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented Raman on the primary sample
Instrument settings: Thermo Almega XR 785nm @ 100% of 500 mW
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Raman Data (Processed)
RRUFF File
Raman Data (RAW) View Graph
RRUFF File
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POWDER DIFFRACTION 
RRUFF ID: R050674.1
Sample Description: Powder
Cell Refinement Output: a: 9.2184(4)Å    b: 3.09355(9)Å    c: 9.3629(5)Å
alpha: 90.°    beta: 90.°    gamma: 90.°   Volume: 267.01(1)    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.

DOWNLOADS:

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 Warwickite

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]

Takéuchi Y, Watanabé T, Ito T (1950) The crystal structures of warwickite, ludwigite and pinakiolite, Acta Crystallographica, 3, 98-107

Moore P B, Araki T (1974) Pinakiolite, Mg2Mn3+O2[BO3]; warwickite, Mg(Mg0.5Ti.05)O[BO3]; wightmanite, Mg5(O)(OH)5[BO3]·nH2O: Crystal chemistry of complex 3 A wallpaper structures, American Mineralogist, 59, 985-1004   [view file]