Click or scroll to zoom
Tap or pinch to zoom
Click or scroll to zoom
Tap or pinch to zoom
Brand: Rosenthal Collection
Features:
- Genuine and natural obsidian
- Jet black, for the highest contrast
- Smooth surface is the best way to test gold
- Convenient 6" x 2" surface size
Details: This high quality Gold and Silver testing stone can be washed and used again for hundreds of tests. It is designed specifically for testing and leaves a very visible streak when testing gold, silver, and platinum. It will not damage the pieces you are testing Rosenthal Collection is a registered trademark protected by US Trademark Law.
model number: T
