noun 다운로드 🔗공유 편도암 A variety of trap or basaltic rock, containing small cavities, occupied, wholly or in part, by nodules or geodes of different minerals, especially agates, quartz, calcite, and the zeolites. When the imbedded minerals are detached or removed by decomposition, it is porous, like lava. Examples : "The old volcanic flow, now visible as a weathered cliff face, was identified as amygdaloids due to the numerous cavities filled with sparkly quartz crystals. " 오래된 화산류는 현재 풍화된 절벽 면으로 보이며, 반짝이는 석영 결정으로 채워진 수많은 공동 때문에 편도암으로 확인되었다. geology mineral material AI와 채팅어휘 게임독해 연습
