砂鉱 さこう Meanings Noun placer; minerals found in placer deposits Kanji 砂 sand. Read as サ. 鉱 ore. Read as コウ. Words containing 砂鉱 砂鉱床 (さこうしょう) placer 金砂鉱 (きんさこう) placer gold Word lists Geology Jinuma: Japanese Dictionary · Word lists