rooseveltiten.
/ˈrəʊzəˌvɛltʌɪt/, U.S. /ˈroʊzəˌvɛltaɪt/ Mineralogy.
A rare mineral found as a white or grey crust in veinlets of cassiterite in Bolivia, Germany, and elsewhere.Rooseveltite is an arsenate of bismuth, BiAsO4. Crystal system: monoclinic.
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the world > the earth > minerals > types of mineral > arsenates > [noun] > others of one element
picropharmacolite1823
arsenicite1843
rösslerite1862
hœrnesite1868
schultenite1926
legrandite1932
rooseveltite1947
sainfeldite1964
1947 Amer. Mineralogist 32 372 (heading) Rooseveltite.
1972 Tschermaks Mineral. u. petrogr. Mitt. 17 65 Rooseveltite occurs in the weathering zone of the San Francisco de los Andes and Cerro Negro de la Aquadita mines, located in the San Juan Province, Argentina.
2005 N. Nezafati et al. in J. Mao & F. P. Bierlein Mineral Deposit Res. I. iv. xxiv. 446/2 The following ore and gangue minerals were observed..molybdenite, pyrite, pyrrhotite, rooseveltite, scheelite, scorodite, and sphalerite.
This entry has been updated (OED Third Edition, November 2010; most recently modified version published online March 2022).
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