🔎 UNIDENTIFIED Mineral Rock Die(s) - Violet/Purple Color enhancement while or after tumbling?

[halobolt]

Mineral Rock Die(s) - Violet/Purple Color enhancement while or after tumbling?

I am looking for reference links for product enhancement (minerals)

-Thank you ,, J

 

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[Red-Coat]

There’s a wealth of information from George W. Fischer at the link below:

https://www.ganoksin.com/member/georgewfischer/

You might also try to get (or borrow from a library) a copy of his 1991 book: “Gemstone & Chemicals: How to Create Color and Inclusions”. I believe it’s out of print.