hausmannite

1. The microstructure of the sample glaze layer under polarizing microscope and reflecting microscope has showed acicular hausmannite crystals on the glaze layer surface of luster glaze.
   通过偏光显微镜和反光显微镜观察试样釉层的显微结构，发现虹彩釉在成釉过程中釉层表面析出了针状的黑锰矿晶体。
2. Experimental results show that primary manganese mineral is hausmannite and controlling conditions of manganese mineral formation are, besides essential material source, pH and Eh in the formation environment.
   结果得出，初始锰矿物是黑锰矿；控制锰矿物形成的条件是，除必要的物质来源外，起决定作用的是形成环境的酸碱度和氧化还原电位。
3. At last, the Hausmannite manganomanganic oxide ( Mn3O4) thin films were deposited by chemical bath deposition and the affect of different deposition parameters on the films was also discussed.
   最后，通过化学浴沉积制备出黑锰矿四氧化三锰薄膜，并且研究了不同实验条件对薄膜影响。
4. The PZC of the synthesized hausmannite is much higher than PZCs of other minerals, and it has the least surface variable negative charge.
   黑锰矿的PZC较高，表面可变负电荷量远低于其他3种矿物。

noun

1. a mineral consisting of manganese tetroxide