Lepidolite with Guimaraesite

Item Description

This plate is draped by thick, brilliant yellow lepidolite clusters. The lepidolite is wonderful for this find and the plate is a HUGE example. As a bonus, on the bottom side, you have a rare mineral species first described from this locality. Guimaraesite is a newly (2006) described complex calcium/zinc/magnesium/iron beryllium phosphate, which comes from an unnamed pegmatite working in this valley. Guimaraesite in sub-mm spherical crystal clusters abounds on this specimen. Its BIG - 7.5 pounds big! Most larger plates in this size had significant damage. This is PRISTINE and even complete around the 3-dimensional edges, overhanging a bit of quartz matrix embedded underneath. Most of the larger clusters are translucent, and richly yellow. It is a superb plate, valued $1500-1800