Gold mainly exists as gold minerals , including electrum, silver - bearing native gold.金以矿物态为主,金矿物主要为银金矿 、 含银 自然金.Most natural electrum also contains copper, iron, palladium, bismuth, and perhaps other metals.大部分天然银金矿含有铜...

electrum的音标：electrum的英式发音音标为：[ɪ'lektrəm]electrum的美式发音音标为：[ɪ'lektrəm]...

n.银金矿，金银合金...