# GTE 2''x2'' Small Premium Black Scratch Touchstone for Acid Gold Silver Platinum Jewelry Testing

The **GTE Premium Testing Scratch Stone** is an essential tool used to determine the **purity and authenticity of gold, silver, and platinum** when used with testing acids. This durable touchstone allows you to create a visible metal streak that reacts with testing solutions, helping you quickly evaluate precious metals.

Compact, reliable, and easy to use, this testing stone is widely used by **jewelers, pawn shops, refiners, and precious metal buyers** for everyday metal testing.

* * *

## Product Includes

• **GTE Premium 2" × 2" Scratch Test Stone**  
• Rubber backing for **stable, non-slip desktop testing**

_Testing acids sold separately._

## How to Use

1.  **Scratch the item** you want to test across the surface of the stone, leaving a visible metal streak about 1 inch long.
2.  **Apply a drop of testing acid** to the streak using the solution that corresponds to the metal you are testing.
3.  **Observe the reaction** and compare the results using your testing chart to determine the metal purity.

* * *

## Ideal For Testing

• Gold jewelry  
• Silver jewelry  
• Platinum jewelry  
• Coins and bullion  
• Scrap precious metals

* * *

A **must-have testing tool for anyone who buys, sells, refines, or collects precious metals.**

## Details

- **Price:** 9.99 USD
- **Vendor:** GOLD TESTING EQUIPMENT
- **Type:** Testing Stone
- **Tags:** GOLD TESTING EQUIPMENT, Shopify Collective

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 9.99 USD | In stock |

## Images

- GTE 2''x2'' Small Premium Black Scratch Touchstone for Acid Gold Silver Platinum Jewelry Testing
- GTE 2''x2'' Small Premium Black Scratch Touchstone for Acid Gold Silver Platinum Jewelry Testing
- GTE 2''x2'' Small Premium Black Scratch Touchstone for Acid Gold Silver Platinum Jewelry Testing
- GTE 2''x2'' Small Premium Black Scratch Touchstone for Acid Gold Silver Platinum Jewelry Testing
- GTE 2''x2'' Small Premium Black Scratch Touchstone for Acid Gold Silver Platinum Jewelry Testing
- GTE 2''x2'' Small Premium Black Scratch Touchstone for Acid Gold Silver Platinum Jewelry Testing
- GTE 2''x2'' Small Premium Black Scratch Touchstone for Acid Gold Silver Platinum Jewelry Testing

---

> Source: [Smart supply deals](https://smartsupplydeals.com/products/gte-2x2-small-premium-black-scratch-touchstone-for-acid-gold-silver-platinum-jewelry-testing)
> Updated: 2026-07-21