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TIL that, in 12th century China, sunglasses with lenses made from smoky quartz were used by court judges to mask their facial expressions and appear impartial. : r/todayilearned
Van Wyk en Le Roux Optometrist - #ThrowbackThursday: In China, sunglasses were used as early as the 12th century. These sunglasses were made out flat panes of smoky quartz. They offered no
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Natural Crystal Sunglasses Men Stone Lens Sunglasses Round Smoky Quartz Glasses Crystal Antique - Sunglasses - AliExpress
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Amazon.com: Zentron Crystal Collection: Smoky Quartz in Velvet Bag Large Natural Rough Bulk Raw Stones for Tumbling, Wire Wrapping, Polishing, Wicca and Reiki (1 Pound) : Health & Household
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