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Gem carvings are judged on material, workmanship, and artistry.  Learn how to apply these criteria to a piece with our step-by-step guide.

“Genesis And Classification Of Agates And Jaspers: A New Theory” Book Review

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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 jewelry.

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 more here.

Where Can You Find Agate Stones Forming?

Agate stones typically form slowly in the cavities of ancient hardened lava flows. Learn where you can see this process occurring today.

What Is The Average Gemstone Faceting Yield?

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Does Chrysoprase Jewelry Fade?

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Jasper - Oregon
Jasper Value, Price, and Jewelry Information

Jasper is an opaque, solid or patterned variety of cryptocrystalline quartz which consists of very tiny quartz crystals colored by various mineral impurities.