BaCO3
This sample of Witherite is displayed in the Smithsonian Museum of Natural History. Witherite is a carbonate mineral which contains barium with the composition BaCO3. This sample is about 11x6 cm and is from Alston Moor, Cumbria, England. In this sample it is appears together with alstonite.
这个Witherite样本陈列在史密森尼自然历史博物馆中。Witherite是一种含钡的碳酸盐矿物,其化学式为BaCO₃。该样本尺寸约为11x6厘米,采自英格兰坎布里亚郡的Alston Moor。在此样本中,它与Alstonite共生存在。
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