砂金

You can’t get those new trainers anywhere. They’re like gold dust.

你在哪儿也找不到那些新教练，他们就跟金一样难找。

Quartz, zircon, magnetite, gold are major constituents of littoral placers in Shandong province, while shell, ballstone, ilmenite, rutile being secondary.

东省滨海以石英、锆英石、磁、金等为主,其次为贝壳、石、钛、金红石等。

Regional volcanic strata are the source of placer gold and laterization process is the main stage of formation of placer gold.

区岩地层是金的源，地表赤红壤化可能是金形成的主要阶段。