Crossword clues for Coal layers 6 lettersAnswerClueSTRATACoal layersVEINCoal layerSEAMCoal layerSEAMSThin coal layersSEAMSCoal layersCLARAINBright layer of coalSEAMThin layer of coalSEAMLayer of coalSEAMSLayers of coalSEAMGeological layer, as of coalSEAMSThin layers, as of coal