Natural Obsidian Test Stone

Natural Obsidian Test Stone

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Item #: 7492
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  • Transline#: gt34
  • Size: 2x3 Color: Black
  • Sold Individually
  • Case Qty: 1
  • Price: $10.63
      Points to Purchase:1063

      Natural obsidian test stones give precise readings when testing for gold purity. Obsidian is a volcanic glass produced when lava becomes cold. It is been used for years to make the sharpest knives. Obsidian test stones, on the contrary to rougher test stones, have a perfectly smooth surface that provides more consistent and reliable readings.