franklinite 的定义
- a mineral of the spinel group, an oxide of zinc, manganese, and iron, occurring in black octahedral crystals or in masses: formerly mined for zinc.
更多franklinite例句
- Franklinite, a zinc-manganese ore, is also a common source of supply.
- In the New Jersey mines the zinc ores are the oxides zincite and willemite, and the zinc-iron oxide franklinite.
- Commercially it is often made from franklinite in the following way.