(0)

AAA+++ Natural Petrified Wood Pear Pair Cabochon, Matched Earring Pair, Hand Cut, Petrificati

 $21.99 USD

Buy here: www.etsy.com

Description

Item Code - AG-8111 Stone Name : Petrified Wood Gemstone Shape : Pear Weight : 21 Cts Size : 24x12x5 MM The process of petrification begins with three raw ingredients: wood, water and mud. A material formed by the silicification of wood, generally in the form of opal or chalcedony, in such a manner as to preserve the original form and structure of the wood. Also known as agatized wood; opalized wood; petrified wood; woodstone. Petrified wood has been preserved for millions of years by the process of petrification. This process turns the wood into quartz crystal which is very brittle and shatters. Even though petrified wood is fragile, it is also harder than steel. Petrified wood (from the Greek root petro meaning ?rock? or ?stone?; literally ?wood turned into stone?) is the name given to a special type of fossilized remains of terrestrial vegetation. It is the result of a tree having turned completely into stone by the process of permineralization. All the organic materials have been replaced with minerals (mostly a silicate, such as quartz), while retaining the original structure of the wood. Unlike other types of fossils which are typically impressions or compressions, petrified wood is a three-dimensional representation of the original organic material. The petrifaction process occurs underground, when wood becomes buried under sediment and is initially preserved due to a lack of oxygen which inhibits aerobic decomposition. Mineral-laden water flowing through the sediment deposits minerals in the plant?s cells; as the plant?s lignin and cellulose decay, a stone mould forms in its place. In general, wood takes less than 100 years to petrify. The organic matter needs to become petrified before it decomposes completely. A forest where the wood has petrified becomes known as a Petrified Forest. Elements such as manganese, iron and copper in the water/mud during the petrification process give petrified wood a variety of color ranges. Pure quartz crystals are colorless, but when contaminants are added to the process the crystals take on a yellow, red, or other tint.

Materials

No material

Colors

No colors

 $21.99 USD

Buy here: www.etsy.com



  Last update:
© 2010 Handmade.net - amazing world of handmade gifts  |  info@handmade.net  |  Terms of Use  |  Site Map  |  Created by Winternet
Print page  |  Up
Your email:
Password:
The cart is empty.