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Name: Warwickite RRUFF ID: R120161 Ideal Chemistry: (Mg,Ti,Fe,Cr,Al)2O(BO3) Locality: South Baptiste Lake roadcut, Bancroft, Ontario, Canada Source: Michael J. Bainbridge [view label] Owner: RRUFF Description: Black prismatic crystals Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction. |
Mineral Group: [ Warwickite (3) ] | ||
Quick search: [ All Warwickite samples (2) ] |
RAMAN SPECTRUM | ||||||||||||
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BROAD SCAN WITH SPECTRAL ARTIFACTS | ||||||||||||
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POWDER DIFFRACTION | |||||||
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RRUFF ID: | R120161.9 | ||||||
Sample Description: | Single crystal, powder profile is calculated | ||||||
Cell Refinement Output: |
a: 9.259(1)Å b: 9.395(2)Å c: 3.1099(4)Å alpha: 90° beta: 90° gamma: 90° Volume: 270.51(7)Å3 Crystal System: orthorhombic |
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REFERENCES for Warwickite | |
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American Mineralogist Crystal Structure Database Record: [view record] |
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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] |
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Shephard C U (1838) Notice of warwickite, a new mineral species, American Journal of Science and Arts, 34, 313-315 [view file] |
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Bertaut E F (1950) Structures des boroferrites, Acta Crystallographica, 3, 473-474 |
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Takéuchi Y, Watanabé T, Ito T (1950) The crystal structures of warwickite, ludwigite and pinakiolite, Acta Crystallographica, 3, 98-107 |
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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] |
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Bigi S, Brigatti M F, Capedri S (1991) Crystal chemistry of Fe- and Cr-rich warwickite, American Mineralogist, 76, 1380-1388 [view file] |
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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] |
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