Apatite Cluster in Orthoclase Feldspar

An apatite crystal cluster, notable for its morphology and size, is found in a feldspar specimen.

阅读更多

Quarterly Crystal:Growth Features on Titanite

Dramatic growth features are found on the surface of a titanite specimen from Russia.

阅读更多

您或许还会喜欢

YMAL GIA Ed
了解校园课程和在线教育
Learn About NextGem
GIA NextGem™ 钻石零售 培训
Explore GIA Laboratory Promotional Offers
探索 GIA 鉴定所的促销优惠
Shop the GIA Store
访问 GIA 商店