Polished Green Opal Pebble - Madagascar - Polished Minerals 5.3cm / 59g / AZ572

OPAL belongs to the silicate group. It mainly contains silicon and a certain amount of water. OPAL occurs in a massive form of spheres of silica and water. Iron and manganese oxides give it its yellow, green, red, and blue reflections.

Origin: polished minerals from Madagascar

Dimensions: 5.3 x 3.5 x 3.2 cm

Weight: 59 g