natural asphalt Directory References Discover How Deadly Is Quicksand? 9 of the World’s Deadliest Snakes Water Fluoridation: Just the Facts Timeline of the 2000s 7 Drugs that Changed the World Why Do Some Cicadas Appear Only Every 17 Years? 7 Everyday English Idioms and Where They Come From Contents natural asphalt chemical compound Ask the Chatbot a Question Ask the Chatbot a Question Also known as: brea Learn about this topic in these articles:varieties of asphalt In asphaltNatural asphalt (also called brea), which is believed to be formed during an early stage in the breakdown of organic marine deposits into petroleum, characteristically contains minerals, while residual petroleum asphalt does not. Read More
