http://resource.geosciml.org/classifier/cgi/commodity-code/anthracite
definition | Anthracite is a hard, compact variety of mineral coal that has a high luster. It has the highest carbon content, the fewest impurities, and the highest calorific content of all types of coal (compared to bituminous coal and lignite). | ![]() |
||||
---|---|---|---|---|---|---|
notation |
|
|||||
source | http://en.wikipedia.org/wiki/Anthracite | ![]() |
||||
type |
|
|||||
broader |
|
|||||
in scheme | commodity code | |||||
is primary topic of | anthracite |