Like quartz, opal is made of silica.

同石英一样，欧由二氧化硅组成。

So this is an opal from Australia which is where a lot of the great opals come from.

这是一种来自澳大利亚白石，许多很白石都来自澳大利亚。

It is more precious than emeralds and dearer than fine opals.

它比绿宝石和白石更珍贵。

These tiny spheres scatter light, giving opal its characteristic rainbow sheen.

这些小状体分散了光线，赋予了欧最具特色五彩光泽。

Some of these experts include the opal as a fifth precious stone while others consider the pearl in this class.

其中有些专家把猫眼石列为五种宝石，而有些专家则认为珍珠才是五种宝石。

That porous material that was the bone got filled in with little spheres, opal, basically.

骨头多孔材料被填充了小体，基本上是白石。

Farintosh, said he. Ah yes, I recall the case; it was concerned with an opal tiara.

法林托歇，他说，啊，是，我想起了那个案子，是一件和猫儿眼宝石女冠冕有关案子。

Bits of silica settled into the gel and then grew into the spheres that make up opal.

少量二氧化硅沉淀在凝胶中，之后成长为构成欧状体。

The tiny, mesmerizing percentage we call precious opals have regions where silica beads of uniform size form orderly arrays.

有极小比例珍贵白石会在部分区域中有大小一致矽珠形成整齐阵列。

So you've got, opals are made up with these little spheres of silica.

你可以看到，白石是由这些小硅石组成。

Nearer at hand, they are like huge blocks of purest marble inlaid with pearl and opal gems.

近了看则像是很多块镶着珍珠和白石光洁无比大理石。

And in rare cases, petrified wood, shells, teeth, and even bones of extinct organisms are made of opal.

在极少数情况下，木变石、贝壳、牙齿甚至是灭绝生物骨骼都形成了欧。

One of the most famous specimens is a pliosaur nicknamed Eric, an almost-complete marine reptile preserved in opal.

最著名范本之一便是一只昵称叫埃里克上龙，这是一只几乎完好保存在欧内部海洋爬行动物。

The Halley's Comet opal is a marvel, but its uniqueness is, paradoxically, the most usual thing about it.

哈雷慧星白石是个奇迹，但矛盾是，它独特性正是它最寻常之处。

It was there that the Halley's Comet opal formed some 100 million years ago.

哈雷慧星白石就是一亿年前左右在那里形成。

'As a diamond kills an opal in the same setting'.

“就像钻石在相同环境中杀死白石一样”。

The vast majority of the time, this structure is haphazard, resulting in common, or potch, opals with unremarkable exteriors.

产生出普通无彩白石，只有平凡外观。

It's there that an opal begins its life as something surprisingly abundant: water.

白石出人意料地诞生于一种随处可见资源当中——水。

The day was as hot and sultry as a fire opal.

这一天像火白石一样炎热闷热。

Opal has been so nasty to you.

奥珀尔对你这么贱。