Tag: 4 types of coal

July 24, 2018

Coal 101: What is Lignite?

Lignite is a type of coal, but what is lignite used for? Here's a look at what lignite is, what...
January 4, 2018

Coal 101: An Overview of Bituminous Coal

There are two types of bituminous coal, thermal and metallurgical. Here's a look at what they're used for and where...
November 29, 2017

Coal 101: Sub-bituminous Coal Explained

There are four varieties of coal, and all have their own specific uses. Learn about the sub-bituminous type of coal...
December 9, 2013

Scientists Create Graphene Quantum Dots from Coal

Can the "wonder material" of the 21st century be derived from coal? According to scientists at Rice University, the answer...