Topaz - Wikipedia, The Free Encyclopedia
Blue topaz is the state gemstone of the US state of Texas Naturally occurring blue topaz is quite rare. Diamond; Diopside; Emerald; Garnet; Jade; Jasper; Lapis lazuli; Larimar; Malachite; Marcasite; Moonstone; Obsidian; Onyx; Opal; Peridot; Prasiolite; Quartz; Ruby; Sapphire; ... Read Article
Chinese Ceramics - Wikipedia, The Free Encyclopedia
Chinese ceramic ware shows a continuous development since the moderndynastic periods and is one of the most significant forms of Chinese art. China is richly endowed with the raw materials needed for making ceramics. Many such pieces may still be seen in museums today, ... Read Article
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