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Bobdownsite
A synonym of Whitlockite
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Dr. Robert Downs
Lustre:
Vitreous
Hardness:
5
Specific Gravity:
3.14
Crystal System:
Trigonal
Name:
Named for Bob Downs (University of Arizona)
Synonym:
A synonym of Whitlockite
Described as a new mineral in 2008, as the F-dominant analogue of whitlockite.
Later, in 2018, it was discredited because it was showed that it does not contain F, which was its distinguishing characteristic as a new mineral.
F-free bobdownsite is equivalent to the mineral whitlockite, although the phase probably lies along the whitlockite-merrillite join (IMA-17E).
Later, in 2018, it was discredited because it was showed that it does not contain F, which was its distinguishing characteristic as a new mineral.
F-free bobdownsite is equivalent to the mineral whitlockite, although the phase probably lies along the whitlockite-merrillite join (IMA-17E).
Unique Identifiers
Mindat ID:
38901 (as Bobdownsite)
4280 (as Whitlockite)
4280 (as Whitlockite)
Long-form identifier:
mindat:1:1:38901:9 (as Bobdownsite)
mindat:1:1:4280:8 (as Whitlockite)
mindat:1:1:4280:8 (as Whitlockite)
Pronunciation of Bobdownsite
Pronunciation:
| Play | Recorded by | Country |
|---|---|---|
| Jolyon Ralph | United Kingdom |
Internet Links for Bobdownsite
mindat.org URL:
https://www.mindat.org/min-38901.html
Please feel free to link to this page.
Please feel free to link to this page.
References for Bobdownsite
Reference List:
Gnos, E., Hofmann, B., Franchi, I. A., Al-Kathiri, A., Huser, M., Moser, L. (2002) Sayh al Uhaymir 094: A new martian meteorite from the Oman desert. Meteoritics & Planetary Science, 37 (6) 835-854 doi:10.1111/j.1945-5100.2002.tb00859.x
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 (4). 1065-1078 doi:10.3749/canmin.49.4.1065
Hålenius, U., Hatert, F., Pasero, M., Mills, S. J. (2018) IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) Newsletter 41. European Journal of Mineralogy, 30. 183-186 doi:10.1127/ejm/2018/0030-2736
McCubbin, Francis M., Phillips, Brian L., Adcock, Christopher T., Tait, Kimberly T., Steele, Andrew, Vaughn, John S., Fries, Marc D., Atudorei, Viorel, Vander Kaaden, Kathleen E., Hausrath, Elisabeth M. (2018) Discreditation of bobdownsite and the establishment of criteria for the identification of minerals with essential monofluorophosphate (PO3F2–) American Mineralogist, 103 (8) 1319-1328 doi:10.2138/am-2018-6440
