Meteors and Meteorites

Stony-Iron Meteorites

石铁陨石

Meteorites are traditionally classified as irons, stones, and stony-irons. The stony-irons, mixtures of metallic iron and stone, are much rarer than the other types. The samples below are on display at the Smithsonian Museum of Natural History.

陨石传统上被分类为铁质陨石、石质陨石和铁-石质陨石。铁-石质陨石是由金属铁和石质成分混合而成，其数量远少于其他类型。下面的样本陈列在史密森尼自然历史博物馆中。

The collection of iron imbedded within rock leads to view that this material came from an intermediate radius of a sizable asteroid. It is not solid metal like the cores of such asteroids, but the aggregation of the metal suggests that there is enough gravity to cause differentiation according to density.

铁质嵌入岩石中的集合表明这种材料来自一个较大小行星的中等半径区域。它并非像此类小行星的核心那样是固态金属，但金属的聚集表明有足够的重力导致根据密度发生分异作用。

This meteorite is labeled with the name Ahumada. It is described as a stony-iron palesite and was found in Chihuahua, Mexico in 1909.

这块陨石被命名为Ahumada。它被描述为一种石铁陨石，于1909年在墨西哥的奇瓦瓦州被发现。

This meteorite is obviously mostly metal, with some rock content around the edges. It is some 20 cm across. It was discovered in 1882 and is labeled with the name Brenham.

这块陨石显然大部分是金属，边缘有一些岩石成分。它的直径约为20厘米。它于1882年被发现，并以Brenham命名。

A closeup of the metal of the Brenham meteorite shows interesting striations which presumably show the symmetry of the crystal formation. This image is about actual size.

布伦汉陨石金属的特写显示了有趣的条纹，这些条纹可能显示出晶体形成的对称性。这张图片的尺寸与实际尺寸相当。