$78 1.81 GEM Gemstone Refractometer Refractive Index Fluid, 1.8ml Vial Premium Starch Refractometer This unit is helpful in

This unit is helpful in Testing for Cabochons

00       Rest of the World: $15

5 volt button batteries) to conserve power

If you ever tried it

but you can rig your own fastening system to keep it safe from wildlife

$78 1.81 GEM Gemstone Refractometer Refractive Index Fluid, 1.8ml Vial Premium Starch Refractometer This unit is helpful inItem Description: 1. 8ml Vial of 1. 81 Refractive Index for Gem Refractometers (this vial is about HALF full) American Made and ARSENIC FREE! THIS IS THE BEST FLUID AVAILABLE FOR GEM REFRACTOMETERS! This product is the non poisonous version of the classic Gem Refractive Index Fluid; Diiodomethane (methylene iodide). This product is also made in the USA! The most important aspect of the Refractometer is the quality of the fluid and its Refractive