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2.3" Rare, Green, Chromium-Rich Petrified Wood Limb - Arizona
In the 1970's a very small deposit of green petrified wood was discovered near Winslow, Arizona and quickly mined out. As this deposit was collected out nearly five decades ago, samples of this material are tough to come by, particularly larger pieces. This rare wood gets its color due to the presence of around 2% chromium within the chalcedony which replaced the wood. It will also act as a natural hydrometer, changing color based on the amount of humidity in the air. The higher the humidity, the darker it gets.
This is a 2.3" long polished limb of this rare petrified wood. It has been polished on one side while the other side has been left in its rough state.
This is a 2.3" long polished limb of this rare petrified wood. It has been polished on one side while the other side has been left in its rough state.
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 that present in that water during fossilization. For example, red colors are due 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 that present in that water during fossilization. For example, red colors are due to iron compounds, greens due to copper, and so on.
SPECIES
Araucarioxylon arizonicum
AGE
LOCATION
Winslow, Arizona
FORMATION
Chinle Formation
SIZE
2.3" long, 1" wide
CATEGORY
SUB CATEGORY
ITEM
#269620
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