A hexagonal crystal, one of the three known structures iron can take, is different from the cubic crystalline structures iron takes at the planet's surface.
A hexagonal crystal, one of the three known structures iron can take, is different from the cubic crystalline structures iron takes at the planet's surface.
六边形的水晶,能够得到的熟知的三结构铁,不同于从地球表面获得的立方体水晶的结构铁。