Premium Gold Test Stone-Made in the USA 3" x 1-5/8" x 1/4" New Tools Salamander Super A crucibles are

Salamander Super A crucibles are made of natural flake graphite and silicon carbide bonded with fine clay

The tool features two distinct guide slots: the lower opening is designed for precise 90-degree cuts

Sold by the troy ounce (20 pennyweight / 31

Final approval for legal-for-trade use depends on your state or local Weights & Measures official

Outstanding resistance to wear for long-lasting

Premium Gold Test Stone-Made in the USA 3" x 1-5/8" x 1/4" New Tools Salamander Super A crucibles areA professional grade gold testing stone made in the USA from natural Arkansas black novaculite, quarried and cut domestically. Used by jewelers and metalsmiths to test precious metals, this stonealso known as a streak stone or touchstoneprovides a reliable surface for acid based karat testing. Beware of cheap imitations made of glass, which stain and degrade quickly under repeated use. To test a metal item, rub or scratch it across the stone's