soft coal
Matte black rock
Soft coal is bitite coal is a type of coal that ignites easily and burns with a smoky, yellow flame.
It's softer and contains more moisture than anthracite (hard coal), making it dirtier to burn but cheaper and more abundant.
Most coal mined in the United States is bituminous.
The soft coal industry dominated Appalachian economics for generations.
Containing natural tar
- sedimentaryFormed from deposited material
- ligniteLow-rank sedimentary fuel
- anthraciteHighest-grade coal variety
- peatWaterlogged decomposed vegetation
strata · deposit · seam · vein · fossil · organic · compression · paleobotany
Filled with combustion haze
- sootyCovered in black residue
- sootCarbon from incomplete burning
- ashCombustion's powdery remains
- smogSunlight-activated urban pollution
particulate · emissions · sulfur · acid rain · carbon · grime · haze · black
Capable of burning
- calorificProducing heat energy
- briquetteCompressed combustible block
- cokeCarbonized coal fuel
- energyPower to do work
power · thermal · gasification · combustion · carbon · burnable · electricity · generation
bituminous
Containing natural tar
- sedimentaryFormed from deposited material
- ligniteLow-rank sedimentary fuel
- anthraciteHighest-grade coal variety
peat · strata · deposit · seam · vein · fossil · organic · compression · paleobotany · mineralogy
smoky
Filled with combustion haze
smog · particulate · emissions · sulfur · acid rain · carbon · grime · haze · black · dirty
combustible
Capable of burning
energy · power · thermal · gasification · combustion · carbon · burnable · electricity · generation · furnace
mine
Ore excavation site
- minerOne who excavates ore
- collieryCoal extraction site
- excavationAct of unearthing
extraction · pit · shaft · drift · tipple · hopper · pickaxe · lamp · tunnel · conveyor
fireplace
Indoor structure for burning
grate · scuttle · warmth · embers · flame · burning · winter · damper · clinker · kindling
- coalanthracite, bituminous, lignite, slack, culm
- coal typesanthracite, lignite, peat, coke, briquettes
soft coalclean coal
Treated fossil fuel
natural gas · solar power · wind energy · nuclear power · hydroelectric power
soft, soften, coal, softly, softness, charcoal, softened, softening, coalfield