@inproceedings{inproceedingsc4c0a2d8,
title   = {Alexandrite at Minaçu, Goiás, and its formation conditions},
author = {Petersen Junior, Klaus Juergen and Schultz-Güttler, Rainer Aloys},
year = {2000},
publisher = {CPRM},
booktitle   = {International Geological Congress}
}