Large 6 by 4 Inch Testing Stone for Gold Silver Platinum

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This classic, premium quality dark stone provides a large (6" x 4" x 3/8") surface for testing gold, silver, and platinum. The piece to be tested is scratched on the stone, then test acid solution determines carat value. Can also be used with test needles to confirm carat markings.

  • Large 6" x 4" testing stone
  • Test gold, silver, and platinum
  • Nice quality - ideal testing surface

Click Here to Learn How to Test Gold and Silver