3.6 out of 5 stars with 29 reviews
Hodgkinsosn Method Gem Filter
List Price
$39.39
Our Price
$39.00
Savings
1% OFF
* Pricing Information Updated Less Then A Minute Ago
Gemstone Characterization without Instruments - The Hodgkinson Method will not tell you what a gemstone is, but it can often instantaneously tell you what it is not. It should be the first test you make before starting your identification process. This very affordable set of cards will, incredibly, teach you how to use your own eyes to zero in on the identity of an unknown gemstone. Look at it as the most affordable "Refractometer" out there! |
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4 Filter Set with instructions and excellent diagrams
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Approximate a gem's Refractive Index using your own eyes!
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Approximate a gem's Birefringence or Double Refraction using your own eyes!
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Approximate a gem's Dispersion using your own eyes!
Product Information Specifications for Hodgkinsosn Method Gem Filter Below:
| Manufacturer | Hanneman Gemological Instruments |
| Brand | Hanneman |
| UPC | 611138661287 |
| Package Size | 4 x 4 x 4 inches |
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