These stones were picked up from Riverton beaches in February this year (2016). After about five weeks of tumbling, with careful sorting to weed out stones that would not take the polish effectively, this is the result – 58 stones of various sizes, shapes and colours. I thought initially one could be an agate, which would be a rarity from Riverton beaches, but it is much more likely to be quartz.
This one looked like an agate. Held up to the light, it has the characteristics of an agate. But it is more likely a clear quartz.
This stone has schist-like characteristics
Breccia
In the shape of a shoe
Greywacke and quartz
Maybe a quartzite
The stones straight out of the tumbler barrel
All 58 stones
