Quartz

Forms of Quartz

石英形式

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. This sample is described as quartz with elbaite is from Cruzeiro mine, Minas Gerais, Brazil and is about 2x6 cm.

石英是二氧化硅，SiO₂。石英在地壳中很丰富，是硅酸盐中化学最简单的形式。所有这些样本均陈列在史密森尼自然历史博物馆。这个样本描述为含埃尔巴石的石英，来自巴西米纳斯吉拉斯州的克鲁泽罗矿，尺寸约为2x6厘米。

This sample at left above is quartz with rhodochrosite. The overall size is about 7x11 cm and the sample is from Cavmic, Crisana-Maramures, Romania. At right is quartz with chrysocolla. The sample size is about 6x8 cm and it is from old Dominion mine, Gila County, Arizona.

上图左侧的样品是石英与玫瑰石英。整体尺寸约为7x11厘米，采自罗马尼亚的Cavmic，Crisana-Maramures。右侧是石英与蓝铜矿的组合，样品尺寸约为6x8厘米，采自亚利桑那州吉拉县的旧 Dominion 矿。

This is quartz with rutile. The mineral sample is about 8x18 cm and is from Itabiara, Bahia, Brazil. The 2670 carat gem is from Minas Gerais, Brazil. It appears to be about 7 cm across.

这是含石英和钛铁矿的矿物样本，尺寸约为8x18厘米，来自巴西巴伊亚州的Itabiara。重2670克拉的宝石来自巴西米纳斯吉拉斯州。看起来其直径约为7厘米。

This sample is described as quartz with hematite. Its size is about 3x3 cm and it is from Cumbria, England.

这种样本被描述为石英和赤铁矿。其尺寸约为3x3厘米，来自英格兰坎布里亚郡。

This quartz specimen is about 15x15 cm and is from Arizona.

这块石英样品大约是15厘米见方的，来自亚利桑那州。

This sample is described as quartz from petrified wood. The sample was about 18x6 cm and was from Arizona.

这种样本被描述为来自化石木的石英。样本尺寸约为18×6厘米，来自亚利桑那州。

This is a petrified dinosaur bone according to the caption. It is about 9x11 cm and was found in Montrose County, Colorado.

根据图中标题，这是一块化石化的恐龙骨。它大约是9x11厘米，发现于科罗拉多州蒙特罗斯县。