#asphaltite
- Natural bitumen — A niche technical term used to designate natural bitumens or asphaltic substances with a complex structure, rich in heavy hydrocarbons, formed through the slow transformation of organic matter in the absence of oxygen. It is used in geological studies regarding fossil fuel deposits and in the special construction materials industry.
- Asphaltite — A natural variety of solid bitumen, black or dark brown in color, with a silky or vitreous luster and conchoidal fracture, formed through the natural oxidation and polymerization of petroleum within the layers of the earth's crust. This hydrocarbon mineral has a high melting point (between 110 and 200 degrees Celsius) and is industrially utilized in manufacturing insulating varnishes, special paints, plastics, and high-performance electrical insulations.