- Not All Those Who Wander are Lost | Rock Tumbling Hobby
For calcite based stones like travertine, you have to watch the heat though, as build up when the pad drags can cause fractures For me the optical cerium worked better on jade than chromium oxide and it's fantastic on agate and jasper And yes, a lot of Jade Cove Big Sur material is mixed hardness and onionskins like a bigod
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