Feature

●✔【Testing Stone Detect Precious Metals】This genuine testing stone is used to verify the gold content of an item, the smooth black glass surface allows you to easily read the test acid on this stone, this detect metals scrap testing stone is used with the gold test acid to determine if acid gold test stones is pure gold and carat.
●✔【Discoloration Test Method】Put a drop of silver platinum testing tools water on the acid silver test stones, the real gold will stay on the touchstone, the fake gold will dissolve or oxidize into blue, the acid will change the color according to the purity, using this precious metal test stone, you will not need to test your precious metal direct operation to avoid damage to the quality of your precious metals
●✔【Wide Compatibility】This touchstone works for testing 10K, 14K, 18K, 22-24K gold, as well as silver and platinum. Suitable for testing various jewelry pieces, coins, and collectibles.
●✔【Suitable for Goldsmithing】Gold testing detection stone is very suitable for testing jewelry, coins, silver, platinum collectibles, a must-have jewelry scratch acid test tool for pawnshops, gold and silver stores, gold and silver testing stones can also help you buy gold and silver for your family, girlfriend.
●✔【Quality Assurance】 We provides quality guarantee and life time after-sale service for every customer. So if you have any question, please contact us to get help.


Description

Feature:

✔【Testing Stone Detect Precious Metals】This genuine testing stone is used to verify the gold content of an item, the smooth black glass surface allows you to easily read the test acid on this stone, this detect metals scrap testing stone is used with the gold test acid to determine if acid gold test stones is pure gold and carat.

✔【Discoloration Test Method】Put a drop of silver platinum testing tools water on the acid silver test stones, the real gold will stay on the touchstone, the fake gold will dissolve or oxidize into blue, the acid will change the color according to the purity, using this precious metal test stone, you will not need to test your precious metal direct operation to avoid damage to the quality of your precious metals

✔【Wide Compatibility】This touchstone works for testing 10K, 14K, 18K, 22-24K gold, as well as silver and platinum. Suitable for testing various jewelry pieces, coins, and collectibles.

✔【Suitable for Goldsmithing】Gold testing detection stone is very suitable for testing jewelry, coins, silver, platinum collectibles, a must-have jewelry scratch acid test tool for pawnshops, gold and silver stores, gold and silver testing stones can also help you buy gold and silver for your family, girlfriend.

✔【Quality Assurance】 We provides quality guarantee and life time after-sale service for every customer. So if you have any question, please contact us to get help.

Specification:
Condition: 100% Brand New
Item Type: Touchstone
Material: Stone
Color: As pictures shown
Size: S, L (optional)
SizeLengthWidthS7.6cm / 3in3.8cm / 1.5inL9.9cm / 3.9in5.2cm / 2in
Package list:
1 * Touchstone