Heulandite
What is it made of?
It is made of water, sodium, calcium, aluminium, silicon and oxygen. It is a zeolite group mineral.
Other minerals in specimen.
Drusy quartz
Where was it found?
Portobello Station, Garrawilla, Gunnedah, New South Wales, Australia.
What is it used for?
Heulandite is sought after by collectors because of its colour and the attractive crystal groups it forms.
Actual size
10.5 x 8 cm
