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Name: Robertsite RRUFF ID: R120040 Ideal Chemistry: Ca2Mn3+3O2(PO4)3·3H2O Locality: Tip Top mine, Custer County, South Dakota, USA Source: Mark N. Feinglos [view label] Owner: RRUFF Description: Dark reddish brown plates on bobdownsite. This sample was used to determine the structure reported in Andrade et al (2012) Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis |
Mineral Group: [ Arseniosiderite (5) ] | ||
Quick search: [ All Robertsite samples (2) ] |
CHEMISTRY | ||||||||
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RAMAN SPECTRUM | ||||||||||||
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BROAD SCAN WITH SPECTRAL ARTIFACTS | ||||||||||||
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POWDER DIFFRACTION | |||||||
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RRUFF ID: | R120040.9 | ||||||
Sample Description: | Single crystal, powder profile is calculated | ||||||
Cell Refinement Output: |
a: 17.3400(9)Å b: 19.446(1)Å c: 11.2787(6)Å alpha: 90° beta: 96.634(3)° gamma: 90° Volume: 3777.7(5)Å3 Crystal System: monoclinic |
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REFERENCES for Robertsite | |
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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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Moore P B, Ito J (1974) I. Jahnsite, segelerite, and robertsite, three new transition metal phosphate species II. Redefinition of overite, an isotype of segelerite III. Isotypy of robertsite, mitridatite, and arseniosiderite, American Mineralogist, 59, 48-59 [view file] |
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Van Kauwenbergh S J, Cooper-Fleck M, Williams M R (1988) The occurrence of robertsite in a sedimentary phosphate ore from Thailand, Mineralogical Magazine, 52, 505-508 [view file] |
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Jambor J L, Burke E A J (1989) New mineral names, American Mineralogist, 74, 1399-1404 [view file] |
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Andrade M B, Morrison S M, Di Domizio A J, Feinglos M N, Downs R T (2012) Robertsite, Ca2MnIII3O2(PO4)3·3H2O, Acta Crystallographica, E68, i74-i75 [view file] |
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