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Blue aquamarine beryl

Rock Science: The Colors of Beryl

By Steve Voynick The gemstones emerald, aquamarine, morganite and heliodor, despite their different, respective green, blue, pink and golden-yellow colors, have one thing in common:...

Issue Highlights: October 2018

The October issue of Rock & Gem takes us to many fascinating places, both above and below ground. • Argentina's Banded Rhodochrosite: Centuries of Precipitation and...

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