Availability: 1 in stock
A rather unusual piece with thick radiating green prehnites sandwiched between graphite and pyrite on one side and tanzanite on the other. Whitish later generation prehnite scattered about look like bruising, but close inspection reveals the mineralization.
Locality: Merelani Hills, Simanjiro District, Manyara Region Tanzania
Composition: Calcium Aluminum Inosilicate