Most of the petrified wood found in the park is made up of quartz.

公园里发现大部分石化木都是用石英组成。

Silica, the mineral that makes up sand and quartz, also has lots of different polymorphs.

组成砾和石英二氧化也有许晶体。

One section of its walls of grey Delhi quartzite had collapsed.

其中一段灰色德里石英岩墙已经倒塌。

The arrangement of silicon and oxygen in quartz is very regular and rigid.

和氧在石英晶体中排列是非常严格且有规律。

Shocked-quarts is a form of quartz that has a very different structure.

冲击石英是石英一种形式，有很一样结构。

Under incredible pressure, the crystals within the quarts are deformed and actually fractured.

在极高压下，石英内部结晶变现破裂。

For example, we have Quartz Crystal clocks and watches accurate to within one minute a year.

例如，我们使用每年误差超过1分钟石英水晶钟表和手表。

In fact the silica in sand is basically just tiny bits of quartz.

实际上沙子里质上就是细碎石英。

This paper is a bit like a beautiful handmade automatic timepiece in the era of quartz watches.

这篇论文有点像是石英表时代里一块精美手工制作机械表。

At the temperatures and pressures humans find comfortable, silica makes the alpha, or so-called “low”, form of quartz.

在人类适宜温压条件下，二氧化形成α-石英，或者我们所说低温石英。

The form of the silica that makes sand, is exactly the same as the form that comprises quartz.

沙子形态二氧化和组成石英二氧化其实是一样。

The researchers also studied damage to the structure in ancient small pieces of quartz to produce an age estimate.

研究人员还研究了古代小块石英结构损坏以预估年代。

The nation’s largest silica sand provider — U.S. Silica — projects a 15 percent drop in demand.

美国最大石英生产商美国石英公司预计需求将下跌15%。

But unlike quartz, it doesn't have a crystal structure.

但石英是，它并具备晶体结构。

Of course, not all beaches are purely quartz sand, and not all quartz sand ends up on beaches.

当然，并是所有海滩都是纯粹石英，也是所有石英最终都会出现在海滩上。

The sand many of us are used to is tiny pieces of quartz that've been broken down from bigger rocks.

我们许人习惯沙子是从更大岩石上分解下来小块石英。

White sand beaches are also mostly made of quartz, but the sand heads hasn't been tinted by iron oxide for feldspar.

白色沙滩也大是用石英构成，但长石并没有被氧化铁染色。

You see a divide there between the rock and quartz, then right up there you can see the top of it.

你能看见岩石和石英分界线，就在上面你能看见它顶端。

I've got some coral, some more quartz and stuff up there.

我在上面有一些珊瑚，一些石英之类东西。

I love, the knobs being just like, I guess their quartz maybe.

我喜欢，旋钮就像，我想他们石英可能。