SnO₂

These samples of cassiterite are displayed in the Smithsonian Museum of Natural History. Cassiterite is an oxide mineral of tin with the composition SnO₂. This sample is about 22 cm wide and it is from Bolivia.

这些锡石标本陈列在史密森尼自然历史博物馆中。锡石是锡的氧化物矿物，化学式为SnO₂。这块标本宽约22厘米，来自玻利维亚。

This sample is about 18cm wide and is from Araca, Bolivia.

这个样本宽约18厘米，来自玻利维亚的阿拉卡。

The shiny black crystals of cassiterite are an ore of tin. Cassiterite has been commonly called tinstone.

cassiterite 是一种锡的矿石，其黑色光泽的晶体被称为锡石。

This is cassiterite with quartz from Horni Slavkov, Cechy, Czech Republic. It is about 12 cm wide.

这是来自捷克共和国切赫地区的霍尼·斯拉夫科的锡石和石英。大约12厘米宽。

This is cassiterite with quartz and muscovite from Panasqueira, Portugal. The sample is about 12 cm wide. The small gray crystals are muscovite.

这是来自葡萄牙潘纳斯奎拉的石英和云母的锡石样品。样品宽约12厘米。其中的小灰色晶体是云母。

This sample of cassiterite is about 9x6 cm and it from Horni Slavkov, Cechy, Czech Republic .

这种锡石样本大约是9厘米乘6厘米，来自捷克共和国切奇地区的霍尼·斯拉夫科夫。

This sample from the same location is about 9x5 cm.

此样本尺寸约为9x5厘米。

These samples of cassiterite have a very different appearance, as if they formed out of a melt. The sample on the left is from Arroya Carrizal, Guanajuato, Mexico and is about 12 cm across. The right sample is from Santin mine, Santa Catalina, Guanajuato, Mexico and is pictured at the same scale.

这些锡石样本外观非常不同，仿佛是从熔融物中形成的。左边的样本来自墨西哥瓜纳华托州阿罗亚·卡里萨尔，直径约12厘米。右边的样本来自墨西哥瓜纳华托州圣塔·卡塔利娜的圣廷矿，以相同的比例拍摄。

The sample at right is cassiterite with quartz from Emmaville, New South Wales, Australia. It is about 25cm high. The sample below is cassiterite with lepidolite from Virgem de Lapa, Minas Gerais, Brazil. It is about 10 cm wide.

右侧的样品是来自澳大利亚新南威尔士州埃马维莱的锡石与石英。高度约为25厘米。下方的样品是来自巴西米纳斯吉拉斯州维拉姆德拉帕的锡石与锂辉石。宽度约为10厘米。

Mindat: 石英

Cassiterite

SnO2

SnO₂