看看在亚当·桑德勒电影《未切割的切割》中扮演主要角色的粗糙蛋白石。蛋白石的真正宝石学和来源信息是什么？

一支抒情的舞蹈：时而一个大踢腿，大胆闪烁着丰富的色彩，时而是细碎的舞步，闪现出星星点点的光芒。

Provides a visual guide to the internal features of natural, treated, synthetic, and imitation opal.

Documents a visit to the sapphire, opal, and emerald mining and trading areas of Ethiopia.

At the AGTA show, Rare Earth Mining Co. (Trumbull, Connecticut) displayed an unexpected material: Indonesian opal reportedly from West Java.

Jürgen Schütz discussed the opal sourcing and cutting activities of the German firm Emil Weis.

Opal purportedly from a new deposit is found to be dyed.

Chatoyancy, rarely seen in play-of-color opal, is observed in Ethiopian material.

World-renowned jewelry artist Paula Crevoshay displays some of her newest pieces at the Tucson gem shows.

Plans to develop a collective in a remote Brazilian rutilated quartz mining community are unveiled.

研究宝石学家 Rebecca Buys（丽贝卡·拜斯）是设计师兼估价师，拥有充实的事业历程，为加利福尼亚州圣地亚哥的 GIA 校友指点机遇。