Refractometer

Gem Identification

Definition

A gemological instrument that measures a polished gemstone's refractive index by determining the critical angle at which total internal reflection occurs between the stone and the instrument's reference glass.

Detailed Explanation

研磨済み宝石の屈折率を測定する宝石学的機器で、宝石と機器の基準ガラス間で全内部反射が生じる臨界角を測定することで数値を求めます。宝石識別の基本的なツールです。

Back to glossary