Clay minerals

Oxford Clay (Jurassic) exposed near Weymouth, England.

Hexagonal sheets of a clay mineral (kaolinite) (SEM image, x1340 magnification)

Clay minerals are hydrous aluminium phyllosilicates, sometimes with variable amounts of iron, magnesium, alkali metals, alkaline earths, and other cations found on or near some planetary surfaces.

Clay minerals form in the presence of water and have been important to life, and many theories of abiogenesis involve them. They have been useful to humans since ancient times in agriculture and manufacturing.

单词	Clay minerals
释义	Clay minerals 原声例句 BBC地平线系列记录片 Traces of what looked like a green clay mineral. 看上去像是某种绿色粘土矿物的痕迹。科拉诺斯动画科普 At the bottom of ancient rivers, now dry and lifeless, scientists have discovered clay minerals buried in the soil. 在如今干涸且毫无生气的古老河流底部，科学家们发现了埋藏在土壤中的粘土矿物。英语百科 Clay minerals Clay minerals are hydrous aluminium phyllosilicates, sometimes with variable amounts of iron, magnesium, alkali metals, alkaline earths, and other cations found on or near some planetary surfaces. Clay minerals form in the presence of water and have been important to life, and many theories of abiogenesis involve them. They have been useful to humans since ancient times in agriculture and manufacturing.
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