Cranberry glass is made by adding ..?
Cranberry glass or 'Gold Ruby' glass is a red glass made by adding gold salts or colloidal gold to molten glass. The glass is typically hand blown or molded. Legend holds that cranberry glass was first discovered when a noble tossed a gold coin into a mixture of molten glass
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+1 Very interesting! M
+1 Very interesting! ---
+1 Very interesting! ShadowMaster