hornstone porphyry角巖狀斑巖
andalusite-hornstone紅柱角巖
felsic hornstone長英質(zhì)角巖
ferruginous hornstone鐵質(zhì)角巖
siliceous hornstone硅質(zhì)噴涂料
hornstone e角巖
long hornstone長英質(zhì)角巖
quartz hornstone石英角巖
andalusite hornstone紅柱石角巖
1. a fine-grained metamorphic rock formed by the action of heat on clay rocks