Obsidian gemstone is a natural glass, formed from volcanic activity in the same way as granite. Obsidian is 35-80% silica and low in water. It has been used in tool-making and jewelry-making for centuries . Its sources are Caucasus Mountains, Georgia, Armenia, and Russia. Images below show rough snowflake Obsidian being cut and polished.
Slicing Obsidian on a Diamond Saw
Obsidian is easy to saw and makes ideal to cut and polish
Always wear protective mask when working with obsidian rough as the silica can be harmful to your health
Always have plenty of water running over saw blade or polishing wheel as Obsidian is silica and can cause problem to your lungs
A 6 inch saw blade 0.18 grit is good for cutting and polish wheels are diamond impregnated from 180,240 to 400 grit than a final polish
It is also good to carve obsidian so dermal drill with diamond tip drills are best and than polish with drill and the stone has brilliant polish after polishing final lapsa or on pig skin or polish clothes.
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