4" Polished Petrified Shrinkwood End-Cut - Live Oak County, Texas

This is a 4" wide end-cut of petrified shrinkwood from the Fleming Formation of Live Oak County, Texas. The term "shrinkwood" refers to wood that during preservation, became fragmented from shrinkage, resulting in small cavities that become naturally "glued" back together by silica-rich fluids (chalcedony). It has been cut flat on one side and polished to a glossy finish.

Under shortwave ultraviolet light, the chalcedony veins fluoresce a yellow-green color.

Comes with a display stand.

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.

FOR SALE
$25 $21
DETAILS
SPECIES
Unidentified
LOCATION
Live Oak County, Texas
FORMATION
Fleming Formation
SIZE
4 x 3.1", .65" thick
CATEGORY
SUB CATEGORY
ITEM
#236508
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