challacolloite
Noun. (mineralogy) A rare monoclinic halide mineral with the chemical formula KPb2Cl5 that occurs as white encrustations on lava.This is an unmodified, but possibly outdated, definition from Wiktionary and used here under the Creative Commons license. Wiktionary is a great resource. If you like it too, please donate to Wikimedia.
This entry was last updated on RefTopia from its source on 3/20/2012.