pyrolusite

名词 pyrolusite:

1. a mineral consisting of manganese dioxide; an important source of manganese

py.ro.lu.site

n.（名词）
A soft, black to dark gray mineral, MnO2, the commonest and most important secondary ore of manganese.
软锰矿：一种软的，黑色至灰黑色的矿物质，MnO2,是最普通最重要的锰矿

来源：
German Pyrolusit
德语 Pyrolusit
Greek puro- [pyro-]
希腊语 puro- [焦]
Greek lousis [a washing] from louein [to wash] * see leu(…)-
希腊语 lousis [沉出的] 源自 louein [沉] *参见 leu(…)-