Sumatran Petrified Wood & Amber, XL A (7")Petrified wood with amber for sale! This incredible specimen of Sumatran fossil wood and amber is ~20 million years old! Amber is nature's time machine. In a laboratory, scientists can measure the ancient atmospheric content from trapped bubbles and sometimes even isolate the type of ecosystem and season by the plants, animals insects, pollen and spores trapped within. This amazing fossil measures ~7" tall and can be shipped worldwide.