What's the best way to clean finds?

[scavenger1]

Not sure if this is where I need to ask this question I'm kind of new to the forum but what's the best way to clean super old rare relics/finds that have a lot of mineral build up on them? I fear if I go with a strong method I will destroy the relic. So what's you guys thoughts?

 

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[vpnavy]

... best way to clean super old rare relics/finds...

While waiting for some suggestions...
Research/Techniques > Cleaning & Preservation​