Enthusiasts
Chalcedony Guide
GemCoachChalcedony is not actually a species of mineral, but rather any form of microcrystalline quartz. So it is actually is an umbrella term that encompasses a wide variety of semi-precious gemstones. Many of these will be familiar to you from the rock shop, including agate, carnelian, heliotrope, onyx, and others.
Let’s learn more about chalcedony in all its forms!
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