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Name: Bobdownsite RRUFF ID: R070653 Ideal Chemistry: Ca9Mg(PO3F)(PO4)6 Locality: Tip Top mine, Custer County, South Dakota, USA Source: Rock Currier [view label] Owner: RRUFF Description: Colorless rhombohedral crystals embedded in a fine-grained matrix Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
Mineral Group: [ Cerite (11) ] | ||
Quick search: [ All Bobdownsite samples (6) ] |
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: | R070653.9 | ||||||
Sample Description: | Single crystal, powder profile is calculated | ||||||
Cell Refinement Output: |
a: 10.336(2)Å b: 10.336(2)Å c: 37.054(6)Å alpha: 90° beta: 90° gamma: 120° Volume: 3428(2)Å3 Crystal System: hexagonal |
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REFERENCES for Bobdownsite | |
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American Mineralogist Crystal Structure Database Record: [view record] |
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Gnos E, Hofmann B, Franchi I A, Al-Kathiri A, Hauser M, Moser L (2002) Sayh al Uhaymir 094: A new martian meteorite from the Oman desert, Meteoritics and Planetary Science, 37, 835-854 [view file] |
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Williams P A, Hatert F, Pasero M (2008) New minerals approved in 2008, in International Mineralogical Association 1-13 [view file] |
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Tait K T, Barkley M C, Thompson R M, Origlieri M J, Evans S H, Prewitt C T, Yang H (2011) Bobdownsite, a new mineral species from Big Fish River, Yukon, Canada, and its structural relationship with whitlockite-type compounds, The Canadian Mineralogist, 49, 1065-1078 [view file] |
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Nazarov M A, Teplyakova S N, Brandstaetter F, Ntaflos T (2013) Fluorine-bearing merrillite from a silicate inclusion of the Elga (IIE) iron meteorite, Lunar and Planetary Science, 44, 1342-1343 |
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Tait K, Dunnell K (2014) Bobdownsite, a relatively new mineral from Canada faceted as a gemstone, The Journal of Gemmology, 34, 97-97 [view file] |
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Hålenius U, Hatert F, Pasero M, Mills S J (2018) IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) Newsletter 41. New minerals and nomenclature modifications approved in 2017 and 2018, Mineralogical Magazine, 82, 229–233 [view file] |
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McCubbin F M, Phillips B L, Adcock C T, Tait K T, Steele A, Vaughn J S, Fries M D, Atudorei V, Vander Kaaden K E, Hausrath E M (2018) Discreditation of bobdownsite and the establishment of criteria for the identification of minerals with essential monofluorophosphate (PO3F2-), American Mineralogist, 103, 1319–1328 [view file] |
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