Is Grape Agate really just Amethyst?

Investigating and answering another question floating around the crystal community: is Grape Agate really just Amethyst in disguise?  Geologist Fred Krone shares some easy to understand science that makes the answer crystal clear!
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Malachite Myths Debunked

Malachite.  It's a stone that's common in many collections but comes with inconsistent, frightening, and frankly absurd claims about its toxicity.  Can you get malachite wet?  Is malachite as dangerous as some would make it seem?  Find out the facts here in our second collaborative blog with geologist Fred Krone of Northern Maine Minerals.
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