A Must-have For Anyone Interested In Colored Gemstones. Use This Compact Calcite Dichroscope To Differentiate Single-refracting Colored Gemstones From Double-refracting Ones. A Valuable Tool For Examining Rough To Assess Its Identification And Its Color Before Cutting And Polishing. Comes In A Protective Leather Case.; A Gemvue Diffraction Spectroscope Helps Its Owner Analyze Light Passing Through Gem Material. By Discovering What Colors Of The Spectrum Are Absorbed By The Gem, The Viewer Can Understand The Distinct Characteristics Of That Gem, Gathering Useful Clues About Its Identity. This Pocket Spectroscope Comes In A Leather Carrying Case Is Lightweight And Durable. Use It At Home, In The Office, Or On The Road In Your Search For Quality Gemstones.

A must-have for anyone interested in colored gemstones. Use this compact calcite dichroscope to differentiate single-refracting colored gemstones from double-refracting ones. A valuable tool for examining rough to assess its identification and its color before cutting and polishing. Comes in a protective leather case.; A GemVue diffraction spectroscope helps its owner analyze light passing through gem material. By discovering what colors of the spectrum are absorbed by the gem, the viewer can understand the distinct characteristics of that gem, gathering useful clues about its identity. This pocket spectroscope comes in a leather carrying case is lightweight and durable. Use it at home, in the office, or on the road in your search for quality gemstones.