The natural touchstone is an essential tool for jewellers, goldsmiths and professionals who need to verify the purity of precious metals quickly and accurately using touchstone acids.
Made from high-density natural stone, it produces clear marks when rubbed against gold, silver or platinum.
Touchstone features
Dimensions: 62 x 38 x 12 mm
Material: High-quality natural stone
Smooth, hard-wearing surface, ideal for testing with touchstone acids
Compact size, perfect for use in the workshop or for carrying in portable kits
Durable and easy to clean, ensuring consistent results over time
Recommended uses
Testing the purity of gold, silver and other precious metals
Professional work in jewellery, buying, selling and valuation
Quick tests at the counter or on the go
Advantages
Produces clear marks for a more reliable reading
Does not wear easily thanks to its natural composition
Compatible with any set of touch acids
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