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Natural Test Stones
Natural Test Stones A dark stone on which needle and item to be tested are rubbed. Determine karat values of precious metals. Used with test acid solutions.
$4.33
Original: $12.36
-65%Natural Test Stonesā
$12.36
$4.33Product Information
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Description
Natural Test Stones A dark stone on which needle and item to be tested are rubbed. Determine karat values of precious metals. Used with test acid solutions.
