Results 161 to 163 of about 354 (163)
Some of the next articles are maybe not open access.
GLASS-CERAMICS AS IMITATION OF GEMS. I. GEMOLOGICAL CHARACTERISTIC, COMPOSITION, PHYSICAL PROPERTIES
Mineralogical Journal, 2017O. Vyshnevskyi +4 more
openaire +1 more source
A Brief Discussion on the Gemological Characteristics of Sapphire from Four Different Origins
Advances in Geosciencesopenaire +1 more source