









A very aesthetic specimen of Quartz var Prase from the renowned location of Kavalerovo, Russia. Lustrous well formed green coloured Quartz crystals to 8.4cm have formed on a reddish-brown Andradite matrix. The crystals of Prase show a tapering sprouting habit from the Andradite base. The Prase has sharp terminations and displays parallel growth on the prism faces. The pleasing green colour is caused by the Quartz being heavily included by the Amphibole Actinolite. The Andradite at the base of the specimen forms an aggregate of sparkling crystals, individually to 0.4cm. Specimens of this type were found in a Skarn deposit some 50km north-west of Dal'negorsk, Far Eastern Russia. The Skarns were formed in the late Cretaceous, associated with an old tectonic subduction zone. The specimen sits and displays to advantage.
More info on this mineral species