FeO(OH)

These samples of goethite are displayed in the Smithsonian Museum of Natural History. Goethite is an oxide mineral of iron with the composition FeO(OH). This sample is about 8x7 cm and it is from Park County, Colorado .

这些赤铁矿样本陈列在史密森尼自然历史博物馆中。赤铁矿是一种含铁的氧化物，化学式为FeO(OH)。该样本尺寸约为8厘米×7厘米，来自科罗拉多州帕克县。

This sample is goethite with quartz and is about 15x15 cm. It is from Morocco.

这种样本是赤铁矿与石英混合物，尺寸约为15×15厘米，来自摩洛哥。

This goethite sample is about 18 x 20 cm and it is from Chestnut Hill, Pennsylvania .

这种赤铁矿样品大约是18厘米乘20厘米，来自宾夕法尼亚州的 Chestnut Hill。

This goethite sample was formed after pyrite when chemical conditions changed. It retains the pyrite's basic cubic shape, so it is a pseudomorph. Pyrite is an iron sulfide, and goethite is an iron oxide hydroxide.

这种赤铁矿样本是在硫化物形成之后，在化学条件变化时形成的。它保留了硫化物的基本立方形状，因此是一种伪晶质体。硫化物是一种含铁硫化物，而赤铁矿是一种含铁氧化物氢氧化物。

This compares the goethite sample with a cubic pyrite sample from Ambassaguas mine, Amejun, La Rioja, Spain.

这将goethite样品与来自西班牙拉里奥哈省Amejun矿区的立方晶系黄铁矿样品进行了比较。

These goethite samples appear to have formed as stalactites. The sample above left is about 13x17 cm and is from Germany. The sample above right is about 10x15 cm and is from La Disha mine, Guerrero, Mexico.

This sample of goethite is about 10 x 16 cm and is from Ironwood, Michigan.

这种赤铁矿样本尺寸约为10厘米×16厘米，来自密歇根州的Ironwood。

Mindat: 赤铁矿

这些赤铁矿样本似乎形成了钟乳石。上方左侧的样本约为13x17厘米，来自德国。上方右侧的样本约为10x15厘米，来自墨西哥格雷罗州的La Disha矿。