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Lepidolite, Guimaraesite
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. The whole piece weighs 7.5 pounds. 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.
Unknown Owner
Product details
Species
SizeLarge Cabinet
Dimensions22.3 x 18.5 x 11.0 cm
Locality
Added on10/23/2024
Comments
Known provenance
2024/08
Unknown Owner
Not disclosed—Species and Locality Wiki Pages
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