There are some independent minerals of Cd, which are secondary minerals formed during weathering and leaching, such as greenockite, otavite and oxides of Cd in the oxidized zone of the deposit.
镉主要以
象存在于闪锌矿中,少量镉以硫镉矿等独立矿物形
存在于矿床
氧化带，是风化淋滤过程中形成镉
矿物。
There are some independent minerals of Cd, which are secondary minerals formed during weathering and leaching, such as greenockite, otavite and oxides of Cd in the oxidized zone of the deposit.
镉主要以象存在于闪锌矿中,少量镉以硫镉矿等独立矿物形存在于矿床氧化带，是风化淋滤过程中形成镉矿物。
It is thought that greenockite is a seconday (supergenic) mineral, but there has been found primary greenockite in the Niujiaotang cadmium-zinc deposit in Guizhou.
在贵州牛角塘镉锌矿床中既有硫镉矿存在,也发现了原硫镉矿。
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