Calcite

方解石

This sample is described as calcite with goethite. It is about 30 cm wide and is from Potosi mine, Santa Eulalia, Chihuahua, Mexico. Millions of microscopic calcite crystals make up the stalactites, which are colored red by goethite. As they grew in a small cavity of limestone, a change in conditions resulted in a second generation of large, blocky calcite crystals.

The three clear calcite crystals at left above, the tallest being about 25cm, are just the beginning of the vast variety of forms in which calcite appears. Since it is soluble in acidic water, it can be dissolved and recrystallized with a large number of different inclusions. All of the samples pictured here are on display at the Smithsonian Museum of Natural History.

图中左侧的三个清晰可见的方解石晶体，最高约25厘米，只是方解石呈现的各种形态中的一小部分。由于它能溶于酸性水，因此可以被溶解并重新结晶，形成大量不同的包含物。此处展示的所有样品均陈列于史密森尼自然历史博物馆。

The center sample above is manganoan calcite from Idarado Mine, Ouray, Colorado. Sample size 15-18 cm.

上图中的中心样本是来自科罗拉多州我们的雷矿的磁铁矿方解石，样本大小为15-18厘米。

The right sample is calcite with duftite inclusions from Tsumeb, Namibia. Sample size about 12 cm.

右侧样本为来自纳米比亚Tsumeb的方解石，含有杜夫石包裹体，样本大小约12厘米。

Calcite, CaCO₃, is the most abundant of the carbonate minerals.

方解石（CaCO₃）是碳酸盐矿物中最为丰富的矿物。

Clear calcite has many optical applications because of its large birefringence.

澄清石英因其较大的双折射而具有许多光学应用

From Tsumeb, Namibia. Sample size about 12cm.

来自纳米比亚的Tsumeb。样本大小约12厘米。

Calcite after glauberite from Camp Verde, Yavapai County, Arizona. The sample is about 8cm across.

来自亚瓦皮县阿兹兰特的坎普维多矿床的石英，经过胶体石英处理。样品宽约8厘米。

The red calcite at left above is calcite with goethite inclusions from Santa Eulalia, Chihuahua, Mexico. It is about 25cm wide. The center sample has calcite crystals growing from galena from Ozark lead mine, Ellington, Missouri. The complete sample is about 40cm high. The sample at right above is about 20cm wide and is from Namibia.

左上方的红色方解石含有磁铁矿中的赤铁矿包裹体，来自墨西哥奇瓦瓦州圣胡安内拉。其宽度约为25厘米。中间的样品是来自密苏里州埃利顿的奥扎克铅矿的方解石晶体从磁铁矿中生长出来。整个样品高度约为40厘米。右上方的样品宽度约为20厘米，来自纳米比亚。

The calcite sample at right is from the Copper Queen mine in Bisbee, Arizona. The light blue color is presumably from a trace of copper, since it looks like the color of azurite. The sample size is about 12x25 cm.

右侧的方解石样品来自亚利桑那州比斯比的铜皇后矿。其青蓝色可能是由于铜的微量存在，因为其颜色看起来像蓝铜矿。样品尺寸约为12x25厘米。

This is calcite with galena and chalcopyrite. The sample is about 20 x 40 cm and is from Joplin, Missouri.

这是含方铅矿和黄铜矿的方解石。样品尺寸约为20厘米×40厘米，来自密苏里州乔普林。

This calcite sample is from Minerva mine, Cardin, Oklahoma. It is about 30 cm long.

这块方解石样品来自俄克拉荷马州卡丁的明娜矿。它长约30厘米。

This large sample of calcite is from the Woodchuck mine in Bisbee, Arizona. The sample size is about 60x50 cm.

这块较大的方解石样本来自亚利桑那州比斯比的Woodchuck矿。样本尺寸约为60x50厘米。

This large calcite crystal is from Joplin, Missouri. It is about 40x20 cm and some 15cm thick.

这块大的方解石晶体来自密苏里州乔普林。它大约是40x20厘米，厚约15厘米。

The collection of calcite crystals at right is from Elmwood mine, Carthage, Tennessee. The overall sample size is about 20x45 cm.

右侧收集的方解石晶体来自田纳西州卡瑟尔格矿。总体样本尺寸约为20厘米×45厘米。

This sample is described as calcite with fluorite. It is about 18x18 cm and is also from Elmwood mine, Carthage, Tennessee.

这种样本被描述为方解石和 fluorite。它大约是18x18厘米，也来自田纳西州卡瑟尔格矿。

This calcite specimen is from San Luis Potosi, Mexico. It is about 25 cm across.

这块方解石标本来自墨西哥的圣路易斯波托西，直径约25厘米。

This sample has calcite with quartz and hematite. It is about 12 cm across and is from Zacatecas, Mexico.

这种样本含有方解石、石英和赤铁矿，直径约12厘米，来自墨西哥的萨卡特佩克。

This specimen is described as calcite with quartz. It is about 16 cm wide and is from Guanajuato, Mexico.

这种样本被描述为方解石和石英。它大约有16厘米宽，来自墨西哥的瓜尼亚托。

Continuation of the varieties of calcite.

钙钒石的种类延续

Minerals

矿物

这种样本被描述为方解石和赤铁矿。它大约有30厘米宽，来自墨西哥奇瓦瓦州圣胡安娜利亚的波托西矿。数百万个微小的方解石晶体构成了钟乳石，它们因赤铁矿而呈现红色。由于在石灰岩的小腔室内生长，环境条件的变化导致形成了第二代较大的块状方解石晶体。

Index

索引

HyperPhysics*****Geophysics

HyperPhysics ***** 地球物理学

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