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Name: Parabrandtite RRUFF ID: R220028 Ideal Chemistry: Ca2Mn2+(AsO4)2·2H2O Locality: Cobriza mine, Sacramento District, Copiapó Province, Chile Source: Bob Jenkins Owner: RRUFF Description: Colorless bladed or prismatic crystals, associated with bladed or platy brandtite. Twinning is common, a 180 rotation about c*. Status: The identification of this mineral has been confirmed by X-ray diffraction. |
| Mineral Group: [ fairfieldite (16) ] | ||
| POWDER DIFFRACTION | |||||
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| RRUFF ID: | R220028 | ||||
| Cell Refinement Output: |
a: 6.043(3)Å b: 7.115(5) Å c: 5.709(3) Å alpha: 96.87(4) ° beta: 109.65(3) ° gamma: 108.05(4) ° Volume: 212.8(3)Å3 Crystal System: triclinic |
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| REFERENCES for Parabrandtite | |
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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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Dunn P J, Peacor D R, Su S C, Wicks F J, Parker F J (1987) Parabrandtite, the manganese analogue of talmessite, from Sterling Hill, Ogdensburg, New Jersey, Neues Jahrbuch für Mineralogie, Abhandlungen, 157, 113-119 |
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Jambor J L, Burke E A J, Ercit T S, Grice J D (1988) New mineral names, American Mineralogist, 73, 1492-1499 [view file] |
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Fleck M, Kolitsch U, Hertweck B (2002) Natural and synthetic compounds with kröhnkite-type chains: review and classification, Zeitschrift für Kristallographie, 217, 435-443 |
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