วันศุกร์ที่ 3 กุมภาพันธ์ พ.ศ. 2555

petrified wood


petrified wood

        Petrified Wood (English: petrified wood) is one kind of plant fossils. The timber of the landfill beneath the surface in the absence of oxygen, the wood is rotting. And was immersed in an aqueous solution of silica at a concentration high enough. In environments where wood is exposed to oxygen and silica solution as a solution to the silica precipitation in the form of silica gel. Collection of molecules representing the wood. (Replacement) until the beam is switched to organic beef meat, silica rock, but retains the original wood structure.

          With a hundred thousand times a year or more. Petrified wood is a gradual loss of water in small increments and gradually evolved into a colorful opal. Depending on the stigma, which is a mineral assemblage of silica oxide in the flesh. The minerals of various colors as well.

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