Calligraphy Rough For Tumbling available to buy now for £1.66 from the Rough Rock Shop. This Rough For Tumbling is in stock in the UK and will be dispatched within 1 working day.
Calligraphy Jasper has a hardness rating of 7 on the MOHS scale.
Our Tumble rough is an ideal size for use in most rock tumbler barrels and is offered in 100 gram (+/- 5%) packs. This allows you to mix and match different types of rock to create a full barrel load if you wish.
Please review the video below to get an idea of the level of polish that’s achievable on Calligraphy Jasper. Note: this polish was applied on my diamond polishing machine.