Zoisite 13x16-19x27mm Rounded Rough Collar 15-16 Inch Shiva Petrified Wood Agate is formed

Petrified Wood Agate is formed from the petrifaction process of primeval trees over the course of many years

Black Eye Agate is a variety of Sardonyx which has a Sard base

It was named from the Latin "Thule" - which was a term used by ancient Greeks and Romans to refer to the then-little-known lands to the north or present day Scandinavia

This species is formally identified as Gliricidia sepium and can be found by different colloquial names in various parts of the world

Zoisite 13x16-19x27mm Rounded Rough Collar 15-16 Inch Shiva Petrified Wood Agate is formedZoisite, first known as saualpite, after its type locality, is a calcium aluminium hydroxy sorosilicate belonging to the epidote group of minerals. Zoisite occurs as prismatic, orthorhombic crystals or in massive form, being found in metamorphic and pegma