自し然ぜんルテニウム

noun

native ruthenium

Geological term for naturally occurring elemental ruthenium, as opposed to synthetic or refined forms.

• 自し然ぜんルテニウムは、白はっ金きん鉱こう床しょうなどでごく微び量りょうに見みつかることがある。

  Native ruthenium can sometimes be found in trace amounts in platinum deposits.