Silicified wood is a real wood fossil, which was quickly buried underground millions of years ago and replaced by SiO2 (silicon dioxide) in groundwater. It retains the wood structure and texture of trees.

Fossils of plant trunks fossilized by siliceous substances. Its outstanding feature is that the original microstructure of the trunk is clearly preserved and its appearance is lifelike. The xylem of plants can be replaced by calcite, dolomite, apatite and even some limonite and pyrite, which are collectively called petrified wood. In ancient China, the origin of wood fossils was known for a long time.

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The main reason for the formation of silicified wood is that ancient forests were buried underground under the action of natural forces. Under the geological environment of high pressure, low temperature and lack of oxygen, wood was soaked in saturated solution of silicon dioxide. Carbon in trees is gradually replaced by silicon dioxide, which retains the original shape and structural characteristics of trees and blends with trace elements in surrounding rocks, forming colorful colors. This is the cause of silicified wood.

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