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Beryl

Red Beryl

Raspberry red to purplish red

Red
Optical properties

Optical characteristics

Ref. index
1.565 – 1.574
Birefringence
0.005 – 0.009
Luster
Vitreous
Pleochroism
Moderate Moderate: red / purplish red.
Fluorescence
Variable.
Origins

Source localities

United States USA: major gem fields
Notable

Diverse sources for turquoise, tourmaline, opal, sapphire, topaz, red beryl and rare minerals.

100% est. supply
Treatments

Enhancement & treatment

Heat Heat Treatment, Beryl Heating is common in several beryl varieties to improve or stabilize color. It is…
Inclusions

Inclusions & features

Crystals Crystal Inclusions Under 10x loupe: solid, well-formed mineral crystals trapped inside the host gem. They may… Synthetic Curved Growth Striae, Synthetic ID Under 10x loupe in immersion: curved parallel lines flowing through the stone in sweeping… Fractures Feathers and Fractures Under 10x loupe: irregular internal surfaces that catch light and appear bright, wing-like, or… Fractures Fingerprint Inclusions Under 10x loupe: curved or wavy lines of tiny dots forming patterns that look… Needles Growth Tubes, Rain Inclusions Under 10x loupe: long thin hollow channels running parallel to each other and to… Clouds Pinpoint Clouds Under 10x loupe: concentrations of extremely tiny bright dots that individually are too small… Multiphase Two-Phase Inclusions Under 10x loupe: a transparent irregular cavity containing both a liquid phase and a…
Identification

Instruments used

Dichroscope Reveals pleochroism, instantly eliminates singly-refractive stones Immersion Microscope See every internal detail clearly, the professional standard 10x Loupe Your most-used instrument, start every examination here Polariscope Determines single vs. double refraction, quick and conclusive Refractometer Measures refractive index, the backbone of gem identification UV Lamp, Long Wave and Short Wave Fluorescence exposes treatments, synthetics, and origin