Gold& Silver Testing Supplies
Stone used with solutions and test needles to determine karat values.
Economical black glass stone used with solutions and test needles to determine karat values.
Measures: 2″ x 1-1/2″ x 3/16″
Test solution acid for various metals. From 10K-22K gold, silver & platinum. 12 gram bottles.
Natural testing stones are used with solutions and test needles to determine karat values of precious metals.
Natural testing stone in a larger 6″ x 4″ size offers great value and convenience. Use with solutions and test needles to determine the karat value of articles to be tested.
Needles and item to be tested are rubbed on test stones and treated with acid to determine match.
Wood case contains three acid bottles with ground glass stoppers and applicators, test stone, set of gold testing needles.