Gemstones

Gemstones

Contributors in Gemstones

Gemstones

Gemstones that contain traces of copper are very rare and typically have a intense blue, blue-green or violet color. There was considerable excitement in the gem world when the first copper-bearing ...

amethyst

Jewelry; Gemstones

Amethyst is one of the better-known members of the quartz family.

hematite

Jewelry; Gemstones

Hematite is the mineral form of oil oxide, one of several iron oxides.

Moonstone

Jewelry; Gemstones

Used in jewelry for centuries, the moonstone was named by the Romans. The Romans and the Greeks believed the moonstone was a gift from the lunar gods and goddesses. The chemical makeup of moonstone ...

adamantine

Jewelry; Gemstones

The term adamantine is used to describe any gemstone that has diamond-like luster. Only a few gems exhibit such exceptional light reflectance: cerrusite, sphalerite, and demantoid are three examples.

adularescence

Jewelry; Gemstones

Adularescence is an optical phenomenon that manifests as a soft shimmer of light that moves within a gemstone as it is rolled back and forth. This property is most commonly associated with moonstone, ...