Professional Kasauti Gold Testing Stone
Quickly test gold, silver, and precious metals with this professional-grade natural obsidian kasauti testing stone. Ideal for jewelers, gold prospectors, pawn shops, coin collectors, and treasure hunters who need a reliable way to help verify metal purity.
This smooth black touchstone creates high-contrast streaks that work perfectly with gold testing acids, making it easier to compare reactions and identify approximate karat purity.
Whether you’re checking jewelry, coins, nuggets, or scrap gold, this durable testing stone is an essential addition to any prospecting or jewelry toolkit.
Features & Benefits
- Professional-quality natural obsidian touchstone
- High-contrast black surface for easier reading
- Ideal for testing gold, silver, and platinum
- Smooth polished finish for accurate streak testing
- Compact and portable for field or shop use
- Great for prospectors, coin hunters, jewelers, and pawn shops
Specifications
- Size: 4" x 2" x 1/4"
- Weight: Approximately 3.8 oz
- Material: Natural black obsidian
- Use with gold testing acids (sold separately)
How To Use
- Rub the metal item lightly across the stone to leave a streak.
- Apply the appropriate testing acid to the streak.
- Observe the reaction to help determine metal purity.
Perfect For
- Gold prospecting
- Jewelry testing
- Coin collecting
- Pawn shops
- Estate buyers
- Precious metal verification
Suggested FAQs
What is a kasauti stone used for?
A kasauti stone is used with testing acids to help determine the purity of gold, silver, and other precious metals.
Can this test real gold?
Yes. When used properly with gold testing acids, the stone helps identify approximate gold purity and authenticity.
Does this include acid?
No. Testing acids are sold separately.
Will this damage jewelry?
Only a very small streak is applied during testing, similar to standard jeweler testing methods.
