Description
Premium quality dark stone provides a large surface for testing gold, silver, and platinum. The piece to be tested is scratched on the stone, then test acid solution determines carat value.
- 6mm – 50 x 38 x 6mm.
R71.42
Premium quality dark stone provides a large surface for testing gold, silver, and platinum. The piece to be tested is scratched on the stone, then test acid solution determines carat value.
Size: | 6mm, 12mm |
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