5.55" 979g Polished PETRIFIED WOOD BRANCH Fossil Madagascar A1197

Description

Petrified wood:Silicified wood is mainly generated in the Mesozoic period, most in the Jurassic and cretaceous.Petrified wood, is millions of years ago or earlier after trees are quickly buried underground, replaced by SiO2 (silica) in the groundwater of fossil trees.
It preserves the wooden structure and texture of the trees.Color is yellow, weak yellow, brown spots, red, brown, gray, gray, black, etc., polished surface with vitreous luster, opaque or transparent.
The siliceous material petrochemical plant tree fossil.Its outstanding characteristic is the trunk native micro structure clear, lifelike.Except by silica metasomatism, xylem can also be calcite, dolomite, apatite, stated that part of limonite and pyrite, collectively known as petrified wood.
White petrified wood:Tree species in metasequoia, ginkgo and other non resin production plant is given p
riority to, the late impregnation effect weak.
Gray petrified wood:Tree species in metasequoia, ginkgo and other non resin production plant is given priority to, the late impregnation effect is stronger.
Red petrified wood:The impregnation of Fe2O3 red mineral, petrified wood red manifested.
Yellow petrified wood:Due to the effect of impregnation of the Fe2O3 yellow mineral phase, the petrified wood is yellow, the yellow is inhomogenous, a shallow depth.
Brown petrified wood:The impregnation of Fe2O3 brown mineral, petrified wood is brown.
Green petrified wood:Petrified wood green manifested by CuC03 dyeing.