I read that warangan for staining is made from 'raw orange arsenic' and 'realgar'. I imagine what nature provides in Indonesia is similar to the Philippines.
If I stain, I don't want a heavy stain. Maybe ripened calamansi will work?
I have been into the stone hobby for a while. I will find out what this 'realgar' is and if I can find it in the Philippines. I have never heard of this stone, before.
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