The 8.5kg stone was blessed at a ceremony yesterday morning at the Dunedin i-Site where it has been mounted on a plinth. .
Shortly after, his mother Denise Cameron, of Palmerston, was at an event at the Puketeraki marae in Karitane.
A member there said the runaka was looking for some greenstone to present to the Dunedin City Council.
Mrs Cameron said it was then she realised she might be able to help and called her son, who was happy to give it away.
It was a ''touchstone'', which meant it looked better the more it was in contact with the oils from people's hands, Mrs Cameron said.
''Everyone is invited to run their hands over it. It's not a 'do-not-touch', it's a 'please-touch'.''
Her sons Grant and Brendon are both pounamu carvers.
The rock has been held by the Department of Conservation for two years.
