|
This sample of proberite is displayed in the Smithsonian Museum of Natural History. Proberite is a oxide mineral, a borate of sodium and calciumwith the composition NaCaB5O7(OH)4.3H7O. The sample at left is about 12-15 cm across and is from Boron open pit mine, Boron, California.
这个探针石样品陈列在史密森尼自然历史博物馆中。探针石是一种氧化物矿物,是一种钠和钙的硼酸盐,化学式为NaCaB₅O₇(OH)₄·3H₂O。左下方的样品宽约12-15厘米,来自加利福尼亚州硼市的硼露天矿。
|