Learn about Chalcedony
microcrystalline quartz with agate, jasper, chrysoprase; waxy to glassy surfaces, banding and botryoidal forms, a colorful, collectible spectrum.Chalcedony from Mamuju Regency, Indonesia
Mamuju Regency, Indonesia — site of grape agate chalcedony, lavender to violet botryoidal spheres that are amethystine quartz, famed among collectors.
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