Metal Scratch Test Stone Size 4" x 2.5" x .50"STN-GT53
Natural Testing Stone (Heavy Duty Pawn Quality)
For Use With Testing Acid for Gold, Silver, And Platinum.
Made of high quality stone for easy visibility of testing results.
Stone must be used with acid otherwise No testing can be conducted.
Stone Size: 4” x 2.5” x .50” (Premium Thickness of 1/2")
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