Everything You Need to Know About Charcoal, from Briquettes to Binchotan | Bon Appétit
My friend found pieces like this beach combing in NC. Looks like coal but feather light weight and very layered. Not brittle. High gloss sheen. ?????? : r/whatsthisrock
Which is Better for Heating Your Home, Anthracite Coal or Wood? - Leisure Line Stove Company
Charcoal Won't Stay Lit? 8 Easy Tips for the Perfect Flame