- www.eia.doe.gov/fuelcoal.html
- www.nrcce.wvu.edu
- Mining Technology Associations Directory - Index - associations, institutes, societies and government departments for the Mining Industry ...www.mining-technology.com/industry
- Phenix Limited LLC, The Clean Combustion System. Burns Coal as Clean as Natural Gas.phenix-limited.com
- National Coal Resources Data System US Coal Quality Database Browse the Technical Info or Reference Documentation Step 1 Select report to be generated: Sample Descriptions Oxides Proximate & Ultimate Analysis, Heat of Combustion, Forms of Sulfur, Ash Fusion Temp Trace Elements Step 2 Select display or download: Display report in browser Download report in comma separated (CSV) format Step 3 ...energy.er.usgs.gov/coalqual.htm
