12" Polished Madagascar Petrified Wood Slab - Madagascar

This is a colorful 12" wide, "rip-cut" slab of polished petrified Araucaria (extinct Conifer) wood from Ambilobe, Madagascar. It is from the early Triassic period, approximately 220 million years old, close to the time the first dinosaurs appeared on the planet. Both sides of the specimen are polished to a mirror-like finish, allowing for preferred presentation. Comes with a display stand to assist with presentation.

In the context of petrified wood, "rip-cut" is a cut that runs parallel with the grain of the petrified wood, as opposed to the typical transverse (perpendicular) cut.

Petrified wood is the name given to wood that has been turned into stone (fossilized) through the process of permineralization. All of the organic matter becomes replaced by minerals, while much of the original structure such as tree rings in retained. For this to happen the wood needs to be buried in an environment both low in oxygen (preventing decomposition) and with flowing, mineral-laden water. The coloration is due to the various minerals that are present during fossilization. For example red colors are due to iron compounds, greens due to copper, etc.
DETAILS
SPECIES
Araucaria (Conifer)
LOCATION
Ambilobe, Madagascar
SIZE
12x8.4", .78" thick
CATEGORY
SUB CATEGORY
ITEM
#88608
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