Goshenite

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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.

Goshenite Polished
Goshenite Classification
Common Name Goshenite
Species Beryl
Goshenite Optical Properties
Transparency Transparent - Opaque
Dispersion Strength: Weak Fire Value: 0.014
Refractive Index 1.577-1.583
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
Goshenite Characteristic Physical Properties
Hardness 7.5
Streak White
Specific Gravity 2.670-2.900 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
Cleavage Poor, in one direction
Goshenite Chemistry & Crystallography
Chemical Name beryllium aluminum silicate
Chemical Formula Be3Al2(SiO3)6
Crystal System Hexagonal
Chemistry Classification Silicate

Goshenite Colors

  • Black Goshenite Black
  • White Goshenite White

Alternate Names

Colorless Beryl

Countries of Origin

Myanmar; Afghanistan; Mozambique; Pakistan; Unknown; Sri Lanka; Namibia; Brazil; Madagascar; Thailand

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.

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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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Tim Matthews

Author

Tim Matthews

Tim Matthews is President and Chief Executive Officer of Jewelry Television® (JTV), as well as a member of the company's Board of Directors. He oversees and leads all aspects of the company's powerful omni-digital retail platform that uniquely specializes in fine jewelry and gemstones. His passion for business and gemstones has led him to become a recognized expert in the field of gemology. He is a life member of the Gemmological Association of Great Britain (Gem-A) and has earned Gem-A's highest degrees, the Gemmology (FGA) and Diamond (DGA) diplomas. He is also a Graduate Gemologist (GG) of the Gemological Institute of America (GIA) and has also completed GIA's Graduate Diplomas in Diamonds, Colored Stones and Pearls. Under his leadership, JTV has become the leader in the sourcing and selling of color gemstones and jewelry.

This page was created on June 27, 2014.

This page was last edited on October 24, 2019.