A lithium-iron rich mica, often greyish-brown to lilac. It's a stone of peace, tranquility, and transition, calming the mind (lithium influence) and aiding spiritual growth.
Greyish-Brown, Yellowish, Lilac, Pale Violet, Grey, forms platy or pseudohexagonal crystals, often in greisens
Zinnwaldite is classified as a phyllosilicate minerals, mica group mineral which typically crystallizes in the monoclinic system. Its chemical formula is KLiFeAl(AlSi3)O10(OH,F)2. Common crystal habits include well-formed short prismatic or tabular crystals, pseudohexagonal, in rosettes or fan-shaped groups; lamellar or scaly aggregates; disseminated..