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
Mineral Group: [ Warwickite (3) ]
Quick search: [ All Warwickite samples (2) ]
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 sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R050674
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
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INFRARED SPECTRUM (Attenuated Total Reflectance) 
RRUFF ID: R050674.1
Sample Description: Powder
Instrument settings: SensIR Durascope on a Nicolet Magna 860 FTIR
Resolution:
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Infrared Data (Processed)
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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)Å3    Crystal System: orthorhombic
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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
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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]

Shephard C U (1838) Notice of warwickite, a new mineral species, American Journal of Science and Arts, 34, 313-315   [view file]

Bertaut E F (1950) Structures des boroferrites, Acta Crystallographica, 3, 473-474

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]

Bigi S, Brigatti M F, Capedri S (1991) Crystal chemistry of Fe- and Cr-rich warwickite, American Mineralogist, 76, 1380-1388   [view file]

Lupulescu M V, Ehlers A M, Hughes J M, Bailey D G (2020) Warwickite from St. Lawrence County, New York: Mineral association, chemical composition, cation ordering, and splitting of the warwickite M1 site, The Canadian Mineralogist, 58, 183-190   [view file]