AGTA TUCSON GEM AND MINERAL SHOW: FEBRUARY 4-9 2020
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 Post subject: Removing patina from Zincite
PostPosted: Tue Jul 30, 2019 1:15 am 
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I have a large Polish zincite specimen which has developed a hydrozincite patina, due to humidity in Hawaii. This has compromised the lucency and luster of the crystals. Cleaning the surface with white vinegar had minimal benefit. I'd like to know if I could safely use 30% vinegar. Thank you.


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 Post subject: Re: Removing patina from Zincite
PostPosted: Tue Jul 30, 2019 4:49 pm 
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Try a wee bit on a Q-tip.


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