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2.7" Devonian Petrified Wood (Callixylon) Section - Oldest True Wood
This is a 2.7" long section of Upper Devonian (Frasnian Stage) petrified wood (Callixylon trifilievii) collected from the Syas Formation in the St. Petersburg region of Russia. Callixylon is the oldest of the true wood, roughly 380 million years.
What Is Petrified Wood
Petrified wood is the name given to wood that has been turned into stone (fossilized) through the process of permineralization. In this process, all of the organic matter becomes replaced by minerals, while much of the original structure, such as tree rings, is retained. For this to happen, the wood needs to be buried in an environment low in oxygen to prevent decomposition and with flowing, mineral-laden water, so minerals may replace structures. The coloration is caused by various minerals/impurities present in the water during fossilization. For example, red colors in many cases can be attributed to iron compounds, greens due to copper, and so on.
Petrified wood is the name given to wood that has been turned into stone (fossilized) through the process of permineralization. In this process, all of the organic matter becomes replaced by minerals, while much of the original structure, such as tree rings, is retained. For this to happen, the wood needs to be buried in an environment low in oxygen to prevent decomposition and with flowing, mineral-laden water, so minerals may replace structures. The coloration is caused by various minerals/impurities present in the water during fossilization. For example, red colors in many cases can be attributed to iron compounds, greens due to copper, and so on.
SPECIES
Callixylon trifilievii
LOCATION
Syas River, St. Petersburg Region, Russia
FORMATION
Syas Formation
SIZE
2.7 x 1.7 x 1.3"
CATEGORY
ITEM
#363358
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