TY  - JOUR 
T1  - Mineralogical and gemological characterization of emerald crystals from Paraná deposit, NE Brazil: a study of mineral chemistry, absorption and reflectance spectroscopy and thermal analysis
JO  - Brazilian Journal of Geology
A1  - Araújo Neto, José Ferreira de
A1  - Barreto, Sandra de Brito
A1  - Carrino, Thais Andressa
A1  - Müller, Axel
A1  - Santos, Lauro Cézar Montefalco de Lira
SN  - 2317-4889
UL  - 10.1590/2317-4889201920190014
VL  - 49 
Y1  - 2019
PB  - Brasil 
ER  -