 | | Report (issue) | | NaFe3+Mg2Fe3+2(PO4)4(OH)2·8H2O Jahnsite-(NaFeMg) Crystal Data: Monoclinic. Point Group: 2/m. As six-sided...termination corresponding to jahnsite-(NaMnMg), jahnsite-(NaFeMg), jahnsite(CaMnMg), jahnsite-(NaFeMg), and jahnsite-(CaMgMg)...445(1)° Z=2 X-ray Powder Pattern: Tip Top mine, Custer County, South Dakota, USA. 9.218 (100), 2.819 (70), 4...35 35.61 20.34 100.00 (1) Tip Top mine, Custer County, South Dakota, USA; average of 3 electron microprobe...NaFe3+Mg2Fe3+2(PO4)4(OH)2·8H2O. Mineral Group: Whiteite-jahnsite group. Occurrence: A late-stage hydrothermal decomposition |  | | Journal (article/letter/editorial) | | 940–945, 2008 Jahnsite-(NaFeMg), a new mineral from the Tip Top mine, Custer County, South Dakota: Description...Department, Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, Califoria...3 P.O. Box 415, Rapid City, South Dakota 57709, U.S.A. Abstract Jahnsite-(NaFeMg), NaFe3+Mg2Fe3+ 2 (PO4)4(OH)2·8H2O...2, is a new mineral from the Tip Top mine, Custer County, South Dakota. It occurs as the dominant chemical...terms of the general formula for the whiteite-jahnsite group XM1M22M32(PO4)4 3+ 3+ (OH)2·8H2O, yields |
|
