What is the Average Gemstone Faceting Yield?
What’s the average gemstone faceting yield from a single piece of rough? Learn how to estimate how much material you’ll need to cut to get the…
Denver Gem & Mineral Showcase 2017
With over 900 vendors and numerous geologic rarities, the 2017 Denver Gem and Mineral Showcase had plenty to see. Read about some highlights in…
Agate Buying Guide
Decorative, patterned forms of agate are excellent natural gems. Learn more about agate’s mesmerizing patterns in our agate buying guide.
Chalcedony Value, Price, and Jewelry Information
Technically, chalcedony (kal SED’ uh nee) is any form of microcrystalline or cryptocrystalline quartz, (meaning any form of quartz whose crystals…
What Is The Difference Between Chert, Flint, And Mozarkite?
Flint and mozarkite are types of chert. While flint is known for its practical use, mozarkite is a colorful variety of chert that can be made into…
An Introduction To Turkey’s Gemstones
Turkey’s gemstones include well-known species such as diaspore, chalcedony, and jade, as well as unusual specimens of lesser-known gems. Learn…
Does Chrysoprase Jewelry Fade?
Should you wear chrysoprase jewelry only at night to protect the gem’s striking green color? Learn the facts here.
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