Goldstone
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Physical & Optical Properties
Mohs Hardness
Crystal System
Value & Market
Where to Buy Goldstone
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About Goldstone
Goldstone is a man-made glass with a sparkling appearance created by the controlled crystallization of metallic copper or chromium oxide flakes suspended within the glass during production. Originally developed by Italian glassblowers (possibly the Miotti family of Venice) in the seventeenth century, it is produced in reddish-brown (copper) and blue-green (chromium) varieties. Despite being synthetic, goldstone is widely used in beads, cabochons, and carvings valued for its brilliant, starry metallic sparkle.