collection from specimens of various coal minerals

---

Size: 5800px × 5685px
Photo credit: © Valery Vvoennyy / Alamy / Afripics
License: Royalty Free
Model Released: None

Keywords: addictive, admission, anaesthetic, anthracite, area, background, bituminous, black, bone, bonecoal, brown, brownish, brunette, carbon, carbonaceous, checking, close, close-, coal, coalbone, cobble, collage, collection, deep, drug, gemmological, gemmology, gemological, gemology, geological, geology, gray, grey, isolated, jet, jetblack, lignite, macro, material, metamorphic, mineral, natural, ore, part, pebble, piece, raw, rock, sample, schist, section, sedimentary, segment, set, shale, slaty, specimen, stone, surface, swarthy, test, testing, texture, textured, view, white