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Goshenite

Beryl

By Tim Matthews, JD, FGA, GG, DGA,
CEO and President of JTV (retired)
Published: June 2014
Modified: September 2023
Goshenite Polished Goshenite Rough Goshenite Jewelry
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Table of Contents
  • General Information
  • Goshenite Colors
  • Alternate Names
  • Countries of Origin
  • History
  • Care
  • More About Goshenite

While most members of the beryl family such as emerald or aquamarine are famous for their colors, goshenite is the highly collectible colorless variety that displays a diamond-like fiery brilliance. Interestingly, pure beryl is colorless, with traces of different metallic elements being responsible for this gem family's great color range. Always limited in availability, goshenite is named for the locale where it was first discovered--Goshen, Massachusetts.

General Information

  • Classification
  • Optical Properties
  • Characteristic Physical Properties
  • Chemistry & Crystallography
Common Name
Goshenite
Species
Beryl
Transparency
Transparent - Opaque
Dispersion
Strength: Weak Fire Value: 0.014
Refractive Index
1.560-1.602 Tolerance: (+0.017/-0.017)
Birefringence
0.005-0.009
Optic Character
Uniaxial
Optic Sign
Negative
Polariscope Reaction
Doubly Refractive (DR)
Fluorescence
SWUV: Inert
LWUV: Inert
Pleochroism
Unobservable
Hardness
7.5-8
Streak
White
Specific Gravity
2.660-2.920 Range:0.18/-0.05 Typical:2.720
Toughness
Good
Inclusions
Goshenite is a type I clarity stone but sometimes contains tubular, liquid or two-phase inclusions.
Luster
Vitreous
Stability
Good
Fracture
Conchoidal, uneven
Cleavage
Poor, in one direction
Chemical Name
beryllium aluminum silicate
Chemical Formula
Be3Al2(SiO3)6
Crystal System
Hexagonal
Chemistry Classification
Silicate

Goshenite Colors

  • Colorless Goshenite
    Colorless
  • White Goshenite
    White

Alternate Names

Colorless Beryl

Countries of Origin

Myanmar; Afghanistan; Argentina; Russian Federation; Czechia; Sri Lanka; United States of America; Madagascar; Thailand; Portugal; Canada; Austria; Mongolia; Mozambique; Pakistan; Unknown; China; Namibia; Brazil; Italy; Zimbabwe; Bulgaria

History

Most gemstones are prized for their color. There are a few, however, who are prized for their lack of color. Goshenite belongs to the latter group. It keeps good company, as one of the most highly desirable gems as the colorless diamond. A sibling stone to emerald, aquamarine, and morganite, goshenite is a member of the gem world's fashionable elite. Interestingly, pure beryl is colorless. For the purists among you, this colorless beryl is an excellent addition to your jewelry wardrobe. Goshenite is named for the locale where it was first discovered - Goshen, Massachusetts. Always limited in availability, goshenite is another stone we'd like to rename. It's too pretty to be called goshenite.

Care

Normal care

More About Goshenite

Folklore tells us that the ancient people of Ireland used goshenite (colorless beryl) as a divining tool. Goshenite was once used as lenses in eyeglasses, and it's thought that the historical association of goshenite and vision stems from that practical use.

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