Jisho

×
れきせいたん 瀝青炭
Links
Noun
1. bituminous coal​
Wikipedia definition
2. Bituminous coal​Bituminous coal or black coal is a relatively soft coal containing a tarlike substance called bitumen. It is of higher quality than lignite coal but of poorer quality than anthracite. It was usually formed as a result of high pressure on lignite. Bituminous coal is an organic sedimentary rock formed by diagenetic and sub metamorphic compression of peat bog material. Bituminous coal has been compressed and heated so that its primary constituents are macerals vitrinite, exinite, and so on.
Read “Bituminous coal” on English Wikipedia
Read “歴青炭” on Japanese Wikipedia
Read “Bituminous coal” on DBpedia
Other forms
歴青炭 【れきせいたん】

Discussions

to talk about this word.