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Lepidolite
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<p>Lepidolite is the common name for a <a href="/facts/Lilac_(color)/aTy9SWAk">lilac</a>-gray or rose-colored series of minerals in the <a href="/facts/Mica/ag4cdnsb">mica</a> group. The mineralogical name for this series is the polylithionite-trilithionite series. Lepidolite has a chemical formula of K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2. It is the most abundant <a href="/facts/Lithium/7vXX6BWA">lithium</a>-bearing mineral and is a secondary source of this metal. It is the major source of the <a href="/facts/Alkali_metal/IkWbCLk2">alkali metal</a> <a href="/facts/Rubidium/KDHSe2HM">rubidium</a>. </p><p>Lepidolite is found with other lithium-bearing minerals, such as <a href="/facts/Spodumene/tlRhvmeK">spodumene</a>, in <a href="/facts/Pegmatite/qW5BUXPg">pegmatite</a> bodies. It has also been found in high-temperature quartz veins, <a href="/facts/Greisen/sIjf45BI">greisens</a> and granite. </p>