Read Edit View history 硬砂岩 yìngshāyán graywacke Origin Definitions Defs Strokes Stroke Words Sentences Sents Senses Add sense 硬砂岩 yìngshāyán graywacke a type of dark, hard sandstone typically containing poorly sorted grains of quartz and feldspar Edit Delete References Add reference No references for this word.
硬砂岩 yìngshāyán graywacke a type of dark, hard sandstone typically containing poorly sorted grains of quartz and feldspar Edit Delete