Cordierite (rare sharp crystal)

Item Description

A rock forming mineral species normally not worth y of collectors, these are the classics! Cordierite specimens from this locality represent the best from any American locality. This specimen features a relatively well formed, slightly lustrous, medium brown, doubly terminated crystal, 3.5 cm across mostly emplaced on massive quartz. Superb oldtimer ex Bob Whitmore collection, and hard to obtain in such quality. valued $500