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Availability: In Stock
Item #: 782266 -
Natural obsidian test stones give precise readings when testing for gold purity. Obsidian is a volcanic glass produced when lava becomes cold. It has 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.
Availability: In Stock
Item #: 782265 -
Natural obsidian test stones give precise readings when testing for gold purity. Obsidian is a volcanic glass produced when lava becomes cold. It has 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.
Availability: Out of Stock
Item #: 782264 -
Natural obsidian test stones give precise readings when testing for gold purity. Obsidian is a volcanic glass produced when lava becomes cold. It has 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.
Availability: Out of Stock
Item #: 782263 -
Natural obsidian test stones give precise readings when testing for gold purity. Obsidian is a volcanic glass produced when lava becomes cold. It has 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.
Availability: In Stock
Item #: 782267 -
Natural Obsidian Test Stone 8 x 2 x 3/4Natural 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. 8 x 2 x 3/4
Availability: In Stock
Item #: 782271 -
Natural Test Stone Large-SizeThis large size natural Arkansas test stone is used with test acids and test needles to determine the karat value of products. It's ideal for gold testing. 6 x 4 x 3/8"
Availability: In Stock
Item #: 782270 -
Natural Test Stone Medium-Sizehis medium size natural Arkansas test stone is used with test acids and test needles to determine the karat value of products. It's ideal for gold testing. 4 x 2 x 1/4"
Availability: In Stock
Item #: 27728 -
Genuine natural Arkansas gold test stones, used with solutions and test needles to determine the karat value of articles to be tested.
Availability: Out of Stock
Item #: 27736 -
Genuine natural Arkansas gold test stones, used with solutions and test needles to determine the karat value of articles to be tested.