Coolants used in lapidary

I understand that if you soak your turquoise or opal in water first
to fill up all the little pores, you can cut with oil and clean it off
the surface immediately and not have any saturate the stone. Rose
Alene McArthur

ALWAYS remember to wear a mask, no matter what ! The only thing our
lungs are designed to SAFELY inhale is OXYGEN, anything else poses a
threat to our health, even 

actually we’re designed to breath air = 20% O2 and 80%Nitrogen Pure
oxygen is quite toxic it is, after all, an oxidant. (ie it burns
our tissues) sorry, I’m just a stickler for the facts sometimes

love the conversations here. I’m learning a lot (& have a lot to
learn)

gregor