This table is made using some of the first petrified-wood specimens ever collected in the Philippines. They were handpicked from the ground surface, not mined, so harvesting them did no harm the environment.
Petrified wood is a crystallized glasslike fossil of a tree, with the appearance of the wood structure preserved. The fossilization process begins when trees become buried in sediment. Mineral-rich water passing through the sediment carries away the decaying wood molecules and replaces them with minerals. Over thousands of years, the minerals crystalize, producing a stone fossil with the appearance of wood.