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Amesite


Amesite

Photo Copyright © Saul Krotki 2004  - This image is copyrighted. Unauthorized reproduction prohibited.
Locality: Cerro Sapo, Ayopaya Province, Cochabamba Department, Bolivia
Six-fold sector twinning is responsible for the creation of this distinctive field of stars made up of amesite crystal terminations.
The specimen was acquired in Bolivia by Alfredo Petrov from a 1,000 year old pre-Inca sodalite mine. These crystals occur in shallow vugs in a sodalite matrix from an ankerite-sodalite-barite carbonatite dike. Photomicrograph © Saul Krotki (.0523.2). The crystal terminations are 200 microns in diameter.
The crystal lengths are 500 microns. From a thumbnail specimen. Krotki Mineral Collection.


This Photo was Mindat.org Photo of the Day - 1st Feb 2006

This photo has been shown 3666 times



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