lithian muscovite

lithian muscovite

[′lith·ē·ən ′məs·kə‚vīt]
(mineralogy)
A form of the mineral lepidolite containing 3-4% lithium oxide and having a modified two-layer monoclinic muscovite structure.
References in periodicals archive ?
Adjacent to the core zone, blades of white mica and pink to purple lithian muscovite appear, together with locally abundant smoky quartz, platy "cleavelandite" albite, green "amazonite" microcline, and tourmaline.
In addition, multicolored tourmaline, pink-yellow-green spodumene, lithian muscovite and danburite occurred in this pocket which reportedly measured at least 1.2 X 3 X 3 m.
Type-2 crystals have occasionally been observed on matrix with quartz, amazonite, lithian muscovite, cleavelandite, and small prisms of black tourmaline (with a polychrome core).