Lepidolite
Lua error in Module:Infobox at line 235: malformed pattern (missing ']'). Lepidolite is a lilac-gray or rose-colored member of the mica group with formula K(Li,Al,Rb)3(Al,Si)4O10(F,OH)2.[1][2] It is a secondary source of lithium. It is a phyllosilicate mineral[3] and a member of the polylithionite-trilithionite series.[4]
It is associated with other lithium-bearing minerals like spodumene in pegmatite bodies. It is one of the major sources of the rare alkali metals rubidium and caesium.[5] In 1861 Robert Bunsen and Gustav Kirchhoff extracted 150 kg of lepidolite and yielded a few grams of rubidium salts for analysis, and therefore discovered the new element rubidium.[6]
It occurs in granite pegmatites, in some high-temperature quartz veins, greisens and granites. Associated minerals include quartz, feldspar, spodumene, amblygonite, tourmaline, columbite, cassiterite, topaz and beryl.[1]
Notable occurrences include Brazil; Ural Mountains, Russia; California, United States; Tanco Mine, Bernic Lake, Manitoba, Canada; and Madagascar.
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Lepidolite-140533.jpg
Yellow lepidolite from Itinga, Minas Gerais, Brazil. Size: 6.1 x 4.9 x 3.1 cm
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Lavender lepidolite "books" from Himalaya Mine, Mesa Grande District, San Diego County, California, USA. Size: 4.8 x 3.9 x 3.5 cm
References
- ↑ 1.0 1.1 1.2 Handbook of Mineralogy
- ↑ 2.0 2.1 Webmineral
- ↑ Hurlbut, Cornelius S.; Klein, Cornelis (1985), Manual of Mineralogy, Wiley, (20th ed.) ISBN 0-471-80580-7
- ↑ Lepidolite on Mindat.org
- ↑ H. Nechamkin, The Chemistry of the Elements, McGraw-Hill, New York, 1968.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
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