Bituminous Coal

Image shows a sample of bituminous coal on a rock backdrop

Detailed Description

This sample is of bituminous coal, a middle rank coal (between subbituminous and anthracite) formed by additional pressure and heat on lignite. Usually has a high Btu value and may be referred to as "soft coal." Read more about USGS coal research here: https://www.usgs.gov/centers/cersc/science/us-coal-resources-and-reserves-assessment

Details

Image Dimensions: 3008 x 2000

Date Taken:

Location Taken: Reston, VA, US