一切經音義 8.251

8.251

出礦（瓜[夭/(目*月)]反廣雅鐵璞也說文銅鐵石璞字書未經火煉曰礦或作𨥥或作礦同也）。

出礦 (chūkuàng; kuàng has the fanqie 瓜[夭/(目*月)] [kuàng]; the Guangya says it is unrefined iron ore; the Shuowen jiezi says it is unrefined copper, iron, or stone ore; the Zishu says that before undergoing smelting by fire it is called ore; it is also written as 𨥥 or 礦, both being the same).