The lush islands contained gold, silver, and other precious metals and supported an abundance of rare, exotic wildlife.

繁华的岛屿上充斥着金，银以及其他贵重金属，还供养着许多珍稀奇异的野生动植物。

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The paper reviews the latest research and development of comprehensive utilization and recovery of precious and rare metals from molybdenum resource in China.

评述了近年来我国钼资源中稀有金属和贵金属的综合利用与再生回收的研究与开发进展，并在此基础上进行了相关分析和展望。

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Nor can it be reckoned in the collective price of the rare metals and precious stones that rest in the bowels of the African soil we tread in the footsteps of our ancestors.

也不是可以用我们随着祖先的脚印踩踏的非洲土地下所藏有的稀有金属和珍贵宝石的总价来估量的。

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Rare gems and precious metals, made into fabulous designs by renowned craftsmen, have often served as symbols of wealth and power.

FORBES: Boston MFA to Open New Gallery with Jewelry Exhibit

Recycling hazardous electronic equipment for material recovery (e.g. rare earth, and precious and other metals) in a manner which can substantially mitigate the hazards, entails significant costs.

FORBES: It's Easy Enough To Solve The Problem Of E-Waste

Asteroids could yield precious minerals such as gold, platinum and rare-Earth metals.

BBC: New venture 'to mine asteroids'