Hide
OUR ONLINE STORE IS STILL OPERATING
Temporary Customer Service Hours are 10 - 4 Mon - Fri MST
Click here for more information
 



Testing Touchstone for Gold - 2"x3"x8mm

Item # IT067621
Retail $10.00 Our Price $8.99
Quantity:  add to cart
send to wishlist
We are pleased to offer for sale this Large Touchstone for Testing Gold by SE. This test stone measures 3" x 2" x 8mm. Each order is for one test stone, test solutions must be purchased separately.

A touchstone, also refered to as a test stone, is a small, abrasive, silicone based stone that is impervious to acid and easy to clean. When a metal is rubbed on a touchstone, a small amount of the metal is deposited on the stone, forming a colored stripe. This is usually compared to a strip ground from a known metal. A drop of testing solution is then applied to the stripes. By observing the reaction between the acid and the metal stripes, the purity of the metal can be determined.
Quantity:  add to cart
send to wishlist
2021 Red Book
2020 BU American Silver Eagles - Shipping Now!



www.SupplyPromotions.com



Hot Buys!
Use the arrows to the left & right to see more!
arrow left arrow right
* $6.99 Shipping only applicable to street addresses and PO boxes within the continental U.S.
* Free Shipping only applicable to street addresses and PO boxes within the continental U.S.

By using this website you agree to our Privacy Policy and Terms of Use . © CollecTons - all rights reserved

1750 30th St. - Boulder, CO - 80301
(303) 339-7777 - 1-866-680-2655
01.04.00-6