Clear Quartz

澄清石英

Quartz is silicon dioxide, SiO₂. Quartz is abundant in the Earth's crust, being the chemically simplest form of the silicates. All the samples here are displayed in the Smithsonian Museum of Natural History. Perhaps the first visualization of quartz is as a clear crystal, and several examples are shown here. The clear quartz gem shown at right is 353.6 carats and is from Chestnut Hill Township, North Carolina. It appears to be about 3 cm across.

石英是二氧化硅，SiO₂。石英在地球的 crust 中很丰富，是硅酸盐中化学最简单的形式。所有这些样本都陈列在史密森尼自然历史博物馆中。或许石英的第一个可视化形式就是清晰的晶体，这里有几个例子。右侧展示的清晰石英宝石重353.6克拉，来自北卡罗来纳州切斯特顿镇。它看起来大约有3厘米宽。

Clear quartz crystals come in many shapes and sizes. At left above is a column about 12x25 cm from Hot Springs, Arkansas. At center is a single crystal about 2.5x3 cm and at right is a group of crystals about 5x7 cm. These two crystals are also from Arkansas.

透明的石英晶体有多种形状和大小。图中左上方是一块约12x25厘米的柱状晶体，来自阿肯色州霍普斯。中间是一块约2.5x3厘米的单晶体，右方是一组约5x7厘米的晶体。这些晶体也来自阿肯色州。

At far left are two extremely clear crystals about 1.5x7 cm from Hot Springs, Arkansas. At near left is a very large set of crystals, about 25x30 cm, also from Hot Springs.

在最左端是两块极其清晰的晶体，尺寸约为1.5x7厘米，来自阿肯色州霍普斯。在左端附近是一组非常大的晶体，尺寸约为25x30厘米，同样来自霍普斯。

This specimen of clear quartz is about 50x40 cm, a large cluster of crystals from Otome mine, Yamanshi, Japan.

这种透明石英标本尺寸约为50厘米×40厘米，来自日本 Yamanshi 的 Otome 矿区的一个大型晶体簇。

This sample of quartz is about 6x10 cm and is from Middleville, New York. It is described with the phrase "Herkimer Diamond", which refers to "beautifully doubly-terminated quartz crystals already faceted by nature". More comments from the website: "The bedrock in which the crystals are found began forming approximately half a billion years ago in a shallow Cambrian sea that lapped against the southern shores of the ancestral Adirondack Mountains. They make attractive cabinet specimens, either in groups of loose crystals, singly, or in a matrix, all just as they come from the ground. The most perfect crystals, are often used as display pieces in jewelry."

这种石英样品大约是6x10厘米，来自纽约的Middleville。它被描述为“Herkimer钻石”，指的是“已经由自然加工过双端打磨的美丽石英晶体”。网站上的更多评论：“晶体所在的岩层大约在半亿年前形成于一个浅海环境中，该海沿古阿迪朗达克山脉的南部海岸流淌。这些晶体作为陈列品非常吸引人，无论是单独的晶体、成群的松散晶体，还是嵌在基质中的晶体，都是刚从地面采出时的原貌。最完美的晶体通常被用作珠宝展示品。”

The quartz sample above left is about 22x22 cm and is from Guanajuato, Mexico. The sample above right is about 12x15 cm and is from Bourg d'Oisans, Isere, France.

上方左侧的石英样品尺寸约为22x22厘米，产自墨西哥的瓜纳华托。上方右侧的样品尺寸约为12x15厘米，产自法国伊泽尔省的布尔格-德-昂斯。

This large quartz sample is about 20x16 cm and is from Treasury Tunnel, Ouray, Colorado.

这个较大的石英样品尺寸约为20厘米×16厘米，来自科罗拉多州我们的雷隧道。

These crystal quartz gems are 654 and 358 carats. The rose quartz gem is 48.6 carats. They are from Minas Gerais, Brazil.

这些晶体石英宝石重654和358克拉。玫瑰石英宝石重48.6克拉。它们来自巴西的米纳斯吉拉斯州。

More quartz varieties

更多石英种类

Minerals

矿物