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The RRUFF Project is being updated to improve its interface and content. The beta version of the update is accessible to the public at RRUFF.net. New data is only being added to the beta site. Please note that it is in development, and some components are not functional. Existing RRUFF.info links will resolve to the new site after RRUFF.net is officially released.
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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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