pink gems

Discover how ancient wisdom and modern science transform ordinary sapphires into extraordinary gems through four powerful enhancement techniques…

Rainbow moonstone is among the many gemstone varieties that Madagascar is known to house. Specifically, the gem is part of the feldspar mineral…

Diamond testing tools have evolved. Learn how the latest devices compare when distinguishing lab-grown from natural diamonds.

The optical properties of minerals attract our eyes and can give a specimen a unique character. However, mineral physical properties are also…

If you’ve ever seen a gem or mineral appear to glow, you’ve witnessed luminescence. This phenomenon occurs when electrons in certain atoms…

Although gemstone magnetism isn’t a commonly tested gemstone property, it may be useful for making quick separations outside the lab. By Richard…

Hot point testing can determine if a gem or mineral is plastic imitation. It can also reveal if a stone is treated with wax or plastic. By Donald Clark,…

In this article, we will discuss phyllosilicates and tectosilicates. These silicate subclasses include minerals crucial for technology and…

In this article, we will discuss cyclosilicates and inosilicates. These two silicate subclasses include such well-known minerals as beryls,…