Like quartz, opal is made of silica.

同石英一样，欧泊由二氧化硅组成。

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的蛋白石，许多很棒的蛋白石都来自澳大利亚。

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

它比绿宝石和蛋白石更珍贵。

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

这些小球状体分散了光线，赋予了欧泊最具特色的五彩光泽。

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第五种宝石，而有些专家则认为珍珠才是第五种宝石。

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

骨头的多孔材料被填充了小球体，基本上是蛋白石。

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

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

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，之后成长为构成欧泊的球状体。

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

有极小比例的珍贵蛋白石会在部分区域中有大小一致的矽珠形成整齐的阵列。

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

你可以看到，蛋白石是由这些小硅石球组成的。