tainiolite
noun
tai·ni·o·lite
ˈtīnēōˌlīt
plural -s
: a mineral KLiMg2Si4O10F2 consisting of a silicate and fluoride of potassium, lithium, and magnesium of the mica group
Word History
Etymology
tainio- (from Greek tainia band) + -lite; akin to Greek teinein to stretch