In the report the seams were described as undulating, and squeezed. They mentioned its usefulness in applications where a high ash content was acceptable, specifically roasting ores. At the same time the coal had an excessive amount of moisture content which reduced its Btu/Lb to an average of 9000 with air dried coals coming in at 10500. The veins of graphite were considered exploitable for furnace linings, but the coal could not compare to Pa Anthracite.
Ouch, that was fairly scathing. Somewhere between the assessments of high ash content, high incidence of clinkering, uncontrollably hot fires that damage stove tops and boilers, and low btu/lb not surprised they don't mine it anymore.