Moss agate

The stone has been called moss agate since the 19th century. Moss agate is a chalcedony with embedded streaks and moss-like drawings of green magnesium-iron silicates. Synonyms for it are moss jasper, volcanic jasper or cormite.

It is found in India, Burma and Botswana.

Moss agate is colourless, light blue or brownish and is interspersed with green streaks, threads or moss-like formations.


Mineral class of oxides
Formula: SiO2 + Al,Ca,F,Fe,K,Mg,Na,OH,Si

Mohs hardness: 6.5 - 7
Density: 2.58 - 2.62
Cleavability: none, rough fracture
Stroke colour: white
Transparency: translucent

Healing effect
Relief from heaviness, pressure and strain, promotes communication and lively conversation