Mineral sands, such as zircon, sit under a tarpaulin.

油布覆盖着锆石之类矿产。

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It has an important sense in guiding application of the natural colored mineral rock, and in improving the artistic effect and product quality of the pasting picture of sands and plants.

这对指导天然彩色矿物岩石的开发利用，提高砂石植物粘贴画的艺术效果和产品质量具有重要的理论和实际意义。

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The mineral crystalline morphology of foundry natural silica sands has been investigated, which can be divided into two groups:single crystal and polycrystalline gather.

考查了铸造用天然硅砂的矿物晶体形态， 可将其大致分为单晶体和多晶集合体两类。

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The cocaine trade, al-Qaeda, the neglect of the north, half-hearted attempts to integrate Tuareg rebels into the military, and a breathtaking amount of corruption - all these issues had been glossed over or tucked behind the more promising headlines about yet another peaceful election, or the discovery of even more mineral wealth buried beneath the Saharan sands.

BBC: Attacks jolt Mali and France out of complacency

Alberta, Canada is site of the world's largest extraction operations from oil sands, heavy earth laden with bitumen, a hydrocarbon-rich mineral.

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