(Όρος Πέταλο, Βασιλικό, Άνδρος, Κυκλάδες, Ελλάδα)
The Mn-rich rocks are made up of highly oxidized quartzitic schists, quartzites and Mn-rich pyroxenoid and carbonate rocks. The ferromanganoan metasediments in central Andros form part of a volcano-sedimentary sequence that experienced low grade, high pressure metamorphism(P> 1,1 GPa; T = 360°-420° C) followed along the uplift path by a greenschist facies overprint.
References:
-Bonazzi P., Menchetti S., Reinecke T., 1996. Solid solution between piemontite and androsite-(La), a new mineral of the epidote group from Andros Island, Greece. Amer. Miner., 81: 735-742.
http://www.minsocam.org/MSA/ammin/toc/Articles_Free/1996/Bonazzi_p735-742_96.pdf
