H982 18th Century Agate is formed within volcanic

Agate is formed within volcanic rock

The 18th century Italian

natural specimens

and history of sculptural fragment

Petrified wood are fossilized remains of terrestrial vegetation

H982 18th Century Agate is formed within volcanicPetrified wood with hand forged Italian style Iron appliqu. Petrified wood are fossilized remains of terrestrial vegetation, the result of trees having completely transformed to stone through the process of permineralization, a thousand year process. All organic materials have been replaced with minerals, such as quartz, while retaining the original stem tissue. Unlike other fossils that are usually compressions, petrified wood is a three dimensional