硅質岩 Save Sign in to save words Simplified: 硅质岩 guīzhìyán ㄍㄨㄟ ㄓˋ ㄧㄢˊ siliceous rock (mostly composed of silica) Character by character 硅(guī)silicon 質(zhì)character 岩(yán)cliff A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0