砂岩中含少量的重矿物，如锆石、石榴石、电气石、十字石等。

The sandstone contains lesser amount of heavy minerals such as zircon, garnet, tourmaline, and staurolite.

youdao

砂岩中含少量的重矿物，如锆石、石榴石、电气石、十字石等。

The sandstone contains lesser amount of heavy minerals such as zircon, garnet, tourmaline, and staurolite.

youdao