Rocks like plagioclase and olivine that contain calcium and magnesium naturally absorb carbon dioxide to become limestone or dolomite.

比如含有钙和镁的斜长石和橄榄石可以自然吸收二氧化碳转变成石灰岩和白云石。

The plagioclase content of the Chang'e-6 samples is significantly higher than that of the Chang'e-5 samples, while their olivine content is significantly lower.

六号样本的斜长石含量显著高五号样本，而其橄榄石含量则显著较低。

Some have green or orange crystals of a mineral called Olivine embedded in a web of metal.

一些有着绿色或橙色的晶体的叫橄榄石，它们嵌在金属网里。

Olivine is quite common here on Earth but it's largely found inside the planet.

橄榄石在地球上很常见，但它主要存在地球内部。

Peridot is a high-quality version of the mineral olivine.

橄榄石橄榄石的一种高品质变体。

See, tiny green crystals made of a mineral called olivine are falling down on this star from its surrounding clouds of gas.

看，由一种叫橄榄石的制成的微小绿色晶体从周围的气体云中落在这颗恒星上。

Olivine is a type of rock that can actually be found here on Earth, for instance  in parts of Australia.

橄榄石一种岩石， 实际上可以在地球上找到，例如在澳大利亚的部分地区。

That stuff is olivine, basically tiny specks of peridot.

那东西橄榄石，基本上就些小粒的橄榄石。

Unlike sedimentary rocks, which are made by particles of sand and other  detritus slowly accumulating on top of each other over time, an igneous rock like Olivine  is formed by the cooling of magma.

沉积岩由沙子和其他碎屑颗粒随着时间的推移慢慢堆积而形成的，而像橄榄石这样的火成岩由岩浆冷却形成的。

If you go to the southernmost point of the Big Island and go up the east coast about one mile, you will find the Green Sand Beach, which is an entire beach made out of olivine, aka peridot.

若你前往大岛的最南端，并沿着东海岸行进约一英里，便能发现绿沙滩——这片海滩完全由橄榄石（又称橄榄石）构成。

Its mission is to analyse the composition of olivine  rocks near the Shioli Crater, some 200 miles south of the Sea of Tranquility, where  Neil Armstrong took his famous " small step" .

其任务对宁静海南部约200英里处的Shioli陨石坑附近的橄榄岩进行成分分析，这一地点正尼尔·阿姆斯特朗迈出其着名“一小步”的地方。