Anyone solve Purple Oxidation from converted D9?

[TXisbest]

Purple oxidation

So I just had a batch of crystals have purple oxidation. This batch had some crystals that had been crc’d with some activated powders. Could the ph be causing the purple? It’s neat looking, and it’s all for personal use so it’s not a huge deal, just wonder wtf happened. [15866942378537268137395100980529]

can occur from diamonds