Description

Key Features

• Accurate karat determination – Identify gold purity from 10k to 24k with reliable streak testing
• Perfect testing size – 2 x 3 x 0.2 inch dimensions provide optimal surface area for clear results
• Durable natural stone – Traditional touchstone material used by prospectors for centuries
• Portable field testing – Compact size fits easily in your prospecting kit or pocket
• Works with testing acids – Compatible with standard gold testing acid solutions for precise results

About This Gold Test Stone

The JSP Gold Test Stone gives prospectors and treasure hunters a reliable way to verify their gold finds in the field. This traditional touchstone method involves rubbing your gold sample across the stone’s surface, then applying testing acids to determine the exact karat content.

Experienced prospectors know that not every shiny yellow metal is gold, and even real gold varies widely in purity. This test stone helps you distinguish between gold-plated items, brass, and genuine gold while determining whether you’ve found 10k, 14k, 18k, or higher karat content. The dark, fine-grained surface provides the perfect contrast to see color changes when acids are applied.

Whether you’re testing nuggets from your gold prospecting adventures or evaluating jewelry finds from metal detecting, this touchstone delivers consistent, trustworthy results that help you make informed decisions about your discoveries.

Specifications

Dimensions: 2 x 3 x 0.2 inches
Brand: JSP
Material: Natural touchstone
Use: Gold karat testing with acid solutions
Compatibility: All gold testing acid kits