1、Most natural electrum also contains copper, iron, palladium, Bismuth, and perhaps other metals.
大部分天然銀金礦含有銅、鐵、鈀、鉍，可能還有其它金屬。

2、Pyrite, galena, sphalerite, native gold, electrum and joseite are the main ore minerals.
主要金屬礦物是，黃鐵礦、方鉛礦、閃鋅礦、自然金、銀金礦、硫蹄鉍礦。

3、Besides native gold, also kustelite and electrum are existed in the ore deposit.
主要以自然金、金銀礦、銀金礦存在。

electrum翻譯