Learn about topaz's durability and how to care for your topaz jewelry.

Kunzite is the light pink to violetish purple variety of the mineral spodumene.

This document provides the publication information for Gems & Gemology

This document provides the publication information for Gems & Gemology

This document provides the publication information for Gems & Gemology

This document provides the publication information for Gems & Gemology

This document provides the publication information for Gems & Gemology

This document provides the publication information for Gems & Gemology

This document provides the publication information for Gems & Gemology

This document provides the publication information for Gems & Gemology

尖晶石几乎有所有颜色——尤其是红色、粉色和蓝色——由于其储量丰富、价格适中且外形美观，因此是一种很受欢迎的宝石。

纯净的锆石虽然无色，但通常呈黄褐色至棕色。它也存在红色、蓝色、紫色和绿色等颜色。由于其高亮度和高色散性，无色锆石有时被用作珠宝中钻石的替代品。

This document provides the publication information for Gems & Gemology

碧玺的化学成分非常复杂，该类矿物中已识别出十几种不同的矿物种类。

爱德华·古柏林博士收集的藏品中，有许多来自世界各地不常见的宝石。

Among the collection assembled by Dr. Edward Gübelin are a number of uncommon gemstones from many worldwide localities.

This document provides the publication information for Gems & Gemology

非美国公民校区 招生

化学制品安全信息披露