玻璃砂 Traditional form: 玻璃砂 Pinyin (reading): bōlishā Definitions: siliceous sand (geology) Characters: 玻 - glass 璃 - glass; colored glaze 砂 - sand, pebbles, gravel; gritty Traditional characters: 玻 - glass 璃 - glass; colored glaze 砂 - sand, pebbles, gravel; gritty