Those crystals dated back to nearly 193 million years ago.

这些晶石可追溯到大概1.93亿年前。

Later the branches drop off, leaving a forest of bleached spars.

后来树枝脱落，留下一的晶石森林。

Mrs. Fairfax was dusting some vases of fine purple spar, which stood on a sideboard.

费尔法克斯太太正在给放在餐具柜上的一些紫色晶石花瓶除尘。

In a corner of the room there stood a little spinet, which not one of them had noticed before.

在房间的一个角落里放一个小尖晶石， 他们之前没有人注意到过。

But surely, said she, I may enter his county with impunity, and rob it of a few petrified spars without his perceiving me.

“我一定可以大摇大摆地走进他的故乡，趁他不知不觉的时候，攫取几块透明的晶石。”

I saw several large patches and strips of dead bleached spars, the ground beneath them covered with a young even growth.

我看到几块大大的枯死的晶石，它们下面的地面均匀的新生植物。

Perched on the top of a dead spar, they were always interested observers of the geese when they were being shot at.

栖息在一个死晶石的顶部， 当鹅被射击时， 它们总是感兴趣的观察者。

A mineral called fingerite, for instance, forms from copper, oxygen, and vanadium -- an element that’s relatively rare in minerals -- and it dissolves in water .

例如， 一种称为指晶石的矿物由铜、氧和钒（ 一种在矿物中相对稀有的元素） 形成， 并溶于水。

If there were any belated birds in heaven, they saw the island like a large white patch, and the bridges like slim white spars, on the black ground of the river.

如果说天堂里有一只迟来的鸟儿， 他们看到的岛屿就像一大色的斑块， 桥梁就像细长的色晶石， 坐落在黑色的河面上。

Right in the midst of this half-sad, half-sentimental reverie, she heard a familiar voice behind her say earnestly: " And allophite is the new hydrous silicate of alumina and magnesia, much resembling pseudophite, which Websky found in Silesia" .

就在这种半是悲伤、半是感伤的遐想中，她听到身后一个熟悉的声音恳切地说：“异镁石是一种新的氧化铝和氧化镁含水硅酸盐，很像韦伯斯基在西里西亚发现的假晶石。”