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Showing results for tags 'soft rock'.
As part of my fossil preparation process I have the need to reduce the size of the background rock on some specimens collected in the field. My preferred tool is a 300mm slab saw I acquired a while back made for lapidary work as this has very little vibration. Normally if I use it to cut agate or similar rock I use the cheap home brand baby oil, works a treat, good for the hands and no smell after. On the test piece I did with the softer stone the oil permeated into the rock base and the fossil and cleaning in detergent straight after only got the surface clean. I doubt the