ID 263583855 © Ansyvan | Megapixl.com
Sharing is not just caring, it's also about giving credit - add this image to your page and give credit to the talented photographer who captured it.:
anthracite background bitumen bituminous black blind burn carbon charcoal clean coal coalification coffee collection diamond dirty energy environment extract fossil fractured fuel heat industrial industry manufacturing material metallurgical mine mineral mining natural nugget ore pollution power production raw resource resources rock shale stone structure texture underground