Hanneman-Hodgkinson Refratometer (Spot-Spotter)

Hanneman-Hodgkinson Refratometer (Spot-Spotter)

Tool to be used to determinate the RI using the Hanneman-Hodgkinson method.

The Hanneman-Hodgkinson Refractometer, also known as the "Spot-Spotter," is a compact and cost-effective tool for determining the refractive index of gemstones. Based on the method developed by Dr. William Hanneman and Alan Hodgkinson, it enables RI measurement without the use of traditional refractometers. This tool is particularly useful for gemologists and gemstone enthusiasts seeking a simple and portable solution for gemstone identification.