Description
The gold touchstone is a simple and quick tool for screening during purchase, receipt of jewelry or workshop inspection. The principle is based on comparing the reaction of the metal trace on the stone after application of the test liquid - this is an orientation method that helps to distinguish suspicious pieces and choose the next step.
Main advantages
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Quick indicative purity check (typically for 10K / 14K / 18K / 22–24K depending on the test solution used).
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Suitable for jewellery, coins and 'antique' gold and other items to be verified.
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Two sizes for different workflows: a smaller stone for a mobile set, a larger one for more comfortable work on a desk.
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Without consumables in the package: the stone itself – you choose the solutions separately according to the needs of the operation.
Use
- The stone serves as a contact surface for the "drop" test.
- S (Common): approx. 4.5 × 3.9 cm
- M (Superior / small): approx. 6.0 × 3.4 cm
Package contents
- 1× touchstone
- Test solution/acid not included
Technical specifications
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Sizes: S (4.5 x 3.9cm) / M (6.0 x 3.4cm)
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