The Cd, Ga and In in ores are very rare as an independent mineral, but occur in the crystal lattics of sphalerite.

• 矿石中镉、镓、铟的独立矿物极少，镉、镓、铟主要是与闪锌矿中的锌发生类质同象置换而存在于闪锌矿晶格中；