Ruby – Lab-made, Faceted, Red
Ruby gemstones are ideal for calibrating a spectroscope's scale. Our basic spectroscope instructions will show you how to do this. A synthetic ruby, like this brilliant-cut stone, is an affordable option for novice gemologists. Photo by James St. John. Licensed under CC By 2.0.
Article: Spectroscope Instructions for Novice Gemologists
Credit: James St. John
Gemstone | Ruby, Corundum |
Natural or man made | Lab-made |
Gem State | Faceted |
Color | Red |
Transparency | Transparent |