Red Beryl | Gemopedia

Red beryl, or bixbite, more closely resembles emerald than any of the other beryl varieties, exhibiting its typical internal characteristics of inclusions and fractures. Its rich color is due to the presence of manganese. This gem is recognized as one of the rarest gems on the planet, and has only been found in the Wah Wah Mountains of Utah, USA.
Alternate
Names
Bixbite, Red Emerald, Scarlet Emerald
Colors
Red, Purplish Red, Orange Red

Red Beryl Classification

Common Name

Red Beryl

Species

Beryl

Variety

Red Beryl

Colors

Red, Purplish Red, Orange Red

Alternate Names

Bixbite, Red Emerald, Scarlet Emerald

Gemstone Groups

Key Separations

refractive index, birefringence and strenght of color. Magnification is the key test for separating natural from synthetic beryl.

Comments

Gemstones are rare and tend to be small. Typically kept in mineral form. Manganese is the coloring element. Greater color saturation than Morganite. Bixbite is often confused with Pezzottaite.

Red Beryl Optical Properties

Transparency

Transparent - Opaque

Refractive Index

1.566-1.572
Tolerance:(+0.002/-0.003)

Birefringence

0.006-0.008

Optic Character

Uniaxial

Optic Sign

Negative

Polariscope Reaction

Doubly Refractive (DR)

Fluorescence

SWUV: Inert
LWUV: Inert

CCF Reaction

Pleochroism

Dichroic, moderate to strong purplish red to red and orangy red

Dispersion

Strength: weak fire Value: 0.014

Comments

Red Beryl Chemistry & Crystallography

Chemical Name

beryllium aluminum silicate

Chemical Formula

Be3Al2(SiO3)6

Synthesis

Crystal System

Hexagonal

Classification

Silicate

Nature

Natural

Crystallinity

Crystalline

Comments

Red Beryl Characteristic Physical Properties

Hardness

7.5

Streak

Specific Gravity

2.66-2.7

Toughness

Good

Inclusions

Bixbite is a type III stone and clean stones are very rare. Bixbite frequently contains fingerprints and other liquid filled inclusions, 2 and 3-phase inclusions, hollow or liquid filled parallel tubes. Tiny grains or crystals that can be quartz crystals, adularia and hematite are typical inclusion. Hexagonal growth zoning is often seen.

Luster

Vitreous

Stability

Good

Fracture

Conchoidal

Cleavage

Poor, in one direction

Comments

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