1kg Rough moss agate from India 20-50 mm ideal for tumbling

Moss Agate is a silicate mineral with a deep green colouration, but can sometimes have inclusions of white, blue or red. It is not strictly an agate but more closely related to chalcedony. Specimens come in lots of 1kg, in a heavy duty polythene bag. Pieces come in 20-50mm  sizes.