Petrified Wood - Limb Slice From Madagascar

This a slice of a petrified tree limb mined near Ambilobe, Madagascar. It's about 2 inches in diameter and 3/4 of an inch thick. One side has been highly polished to reveal all of the detail such as the tree rings. This petrified wood is from the Early Triassic period or approximately 220 million years old, making it some of the oldest petrified wood available.

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.

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DETAILS
SPECIES
Araucaria (Conifer)
LOCATION
Ambilobe, Madagascar
FORMATION
Isalo II Formation
SIZE
About 2" wide
ITEM
#1816
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