What Is Opal? Opal is one of the world's most popular gemstones and the birthstone for the month of October. A nice precious opal can flash every color of the spectrum with an intensity …

These are now producing beautiful precious opal, fire opal, and black opal with spectacular play-of-color in a variety of patterns and body colors. Ethiopian opals are not only beautiful, but …

The dark bodycolor often makes the fire of black opal more obvious. This contrast of fire color to bodycolor makes black opals very desirable and sell for high prices.

Fire opal is defined by its fiery yellow, fiery orange or fiery red background color. Many people see the word 'fire' and immediately think of the play-of-color displayed by precious opal. The name …

Aug 13, 2019 · Synthetic Opal Color Samples: A sample card displaying a collection of synthetic opal cabochons of various colors. This collection clearly illustrates the abilities of a synthetic …

Aug 10, 2017 · Nevada produces a number of gemstones. They include: precious, fire, and common opal; turquoise; agate; jasper; obsidian; petrified wood; variscite; wonderstone and …

What is a Pinfire Opal? "Pinfire opal" is a name used for opal that has pinpoints of fire throughout the stone. In the accompanying image, the white opal on the left is a pinfire opal cut from …

Boulder opal is a rock containing thin seams and patches of precious opal that are too thin or too small to cut into solid opal. Two popular cutting styles are: 1) a gem that shows seams and …

An "opal doublet" consists of a thin slice of precious opal glued to a solid base (often made of black obsidian). An "opal triplet" consists of a thin slice of precious opal glued to a black base, …

What Is Matrix Opal? Matrix opal is a gem material in which precious opal (or play-of-color opal) is intimately distributed through its host rock. The precious opal can occur as a "cement" …