了解人们如此热衷尖晶石的原因。

Found in nearly every color – most notably red, pink and blue – spinels are popular gemstones because of their abundance, moderate cost and attractiveness.

The spinel used in jewelry is a small part of a group of minerals that share the same crystal structure. Not all of them form transparent crystals suitable for jewelry use, however. Spinel offers a range of hues, from orange to intense “stoplight” red, vibrant pink, and all shades of purple, blue, and violet through bluish green.

Spinel is a good candidate for the title of “History’s Most Underappreciated Gem.” Some ancient mines that supplied gems for royal courts from Rome to China produced spinel, but it was usually confused with better-known stones like ruby and sapphire.

The Black Prince’s Ruby. The Timur Ruby. For centuries, spinel, the great imposter, masqueraded as ruby in Europe’s crown jewels

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

GIA researchers report on a new nickel-diffusion treatment used to modify color in spinel and present criteria for identification.

和 GIA 的实地宝石学家一起寻找越南充满异域风情的天蓝色尖晶石。

关于天然尖晶石钴扩散处理新方法的报告，采用了内含物分析、紫外 - 可见光 - 近红外 (UV-Vis-NIR) 和能​量​色​散 ​X ​射​线​荧​光​ (EDXRF) 光​谱​仪​，还有激光剥蚀电感耦合等离子体质谱仪 ( LA-ICP-MS) 等方法。

斯里兰卡：宝藏之岛