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Calculator for gemological and jewelry tasks
https://www.gemologyonline.com/Forum/phpBB2/viewtopic.php?f=10&t=25495
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Author:  Barbra Voltaire, FGG [ Tue Jan 07, 2020 4:22 pm ]
Post subject:  Calculator for gemological and jewelry tasks

Just stumbled on this. Useful, no?

https://www.vcalc.com/calculator/?uuid= ... 764e04d25f

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