Cranberry glass is made by adding?
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Cranberry glass or 'Gold Ruby' glass is a red glass made by adding gold salts or colloidal gold to molten glass. Tin, in the form of stannous chloride, is sometimes added in tiny amounts as a reducing agent.
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ᴄʀᴀɴʙᴇʀʀʏ ɢʟᴀss ᴏʀ 'ɢᴏʟᴅ ʀᴜʙʏ' ɢʟᴀss ɪs ᴀ ʀᴇᴅ ɢʟᴀss ᴍᴀᴅᴇ ʙʏ ᴀᴅᴅɪɴɢ ɢᴏʟᴅ sᴀʟᴛs ᴏʀ ᴄᴏʟʟᴏɪᴅᴀʟ ɢᴏʟᴅ ᴛᴏ ᴍᴏʟᴛᴇɴ ɢʟᴀss. ᴛɪɴ, ɪɴ ᴛʜᴇ ғᴏʀᴍ ᴏғ sᴛᴀɴɴᴏᴜs ᴄʜʟᴏʀɪᴅᴇ, ɪs sᴏᴍᴇᴛɪᴍᴇs ᴀᴅᴅᴇᴅ ɪɴ ᴛɪɴʏ ᴀᴍᴏᴜɴᴛs ᴀs ᴀ ʀᴇᴅᴜᴄɪɴɢ ᴀɢᴇɴᴛ.
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