Definitions for "Rock Crystal"
Naturally-occurring Quartz. Also a style of engraving where all the engraved parts are polished, giving a more brilliant effect (developed in England during the 1880s & 1890s)
Transparent, colorless, crystal of Quartz.
A colorless water-clear form of quartz, rock crystal was believed by some ancient Greeks to be ice that had hardened over time into stone.
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