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Chalcedony
Chalcedony
146
listings
317
in gallery
Market data
About Chalcedony
Formula
SiO
2
Mineral guide
Learn about Chalcedony
Chalcedony: microcrystalline quartz with agate, jasper, chrysoprase; waxy to glassy surfaces, banding and botryoidal forms, a colorful, collectible spectrum.
