
White Beryl
Beryl, var. goshenite — Be3Al2Si6O18
The colorless to milky-white variety of beryl, known mineralogically as goshenite and once used to imitate diamond and other gems.
- Mohs hardness
- 7.5-8
- Color
- colorless to milky white
- Type
- gemstone
Got a rock like this?
Identify any rock from a photo, free.
Overview
White beryl is the colorless or near-colorless form of beryl, formally called goshenite after Goshen, Massachusetts, where it was first described. Lacking the trace elements that color other beryls, it is essentially pure beryllium aluminum silicate.
While less glamorous than emerald or aquamarine, white beryl is valued for its clarity, hardness, and clean faceting. Historically it was used as a lens material and to imitate diamond and other colorless gems.
Milky to translucent material is common; the transparent, water-clear stones are the most prized. Goshenite is also the base material that can be diffused or backed with foil to mimic other colored gems.
Formation & geology
White beryl forms in granitic pegmatites and some hydrothermal and metamorphic settings, the same environments as other beryls. Its colorless nature reflects an absence of significant iron, chromium, manganese, or cesium in the growth fluids.
In pegmatite pockets, slow crystallization yields the well-formed hexagonal prisms typical of the species. Because the chromophore elements that tint other beryls are simply absent or below threshold, the crystal stays clear.
Notable sources include Brazil, Pakistan, Russia, Canada, and the original New England pegmatites of the United States.
How to identify it
Goshenite is colorless with a vitreous luster, white streak, and Mohs hardness of 7.5-8. It forms hexagonal prisms and shows no body color, distinguishing it from tinted beryls.
Separate it from colorless quartz (rock crystal) by its higher refractive index and slightly greater density, and from white topaz by topaz's distinct basal cleavage and higher specific gravity. Unlike diamond it has far lower dispersion and refractive index, so it shows little fire.
No pleochroism is visible because the stone is colorless. The combination of hexagonal habit, hardness near 8, and total lack of color is the practical signature.
Uses & significance
White beryl is faceted into clear, brilliant gems and was historically used for spectacle lenses and as a diamond simulant before modern substitutes appeared. It also serves as a colorless backdrop for foil-backed or coated imitation gems.
Well-crystallized goshenite is collected as a mineral specimen, and the species is a minor ore of beryllium. As a gem it offers durability and clarity at a modest price.
In metaphysical practice, colorless beryl is associated with clarity of thought, truth, and amplifying intention.
Frequently asked questions
What is white beryl called by mineralogists?
It is named goshenite, after the town of Goshen, Massachusetts, where it was first identified.
Why is goshenite colorless?
It lacks the trace elements (iron, chromium, manganese, cesium) that give other beryl varieties their color.
Can white beryl be confused with diamond?
It was once used as a diamond imitation, but it has far less brilliance and fire and is softer, so the two are easy to tell apart with testing.
Is goshenite valuable?
It is the least expensive beryl variety, valued for clarity and as collectible crystals rather than for high market price.
White Beryl guides
In-depth guides for identifying, valuing, and understanding White Beryl.
Other rocks you may enjoy

Tri-Color Tourmaline
Mohs 7-7.5

Cat's Eye Pink Tourmaline
Mohs 7-7.5

Yellow Labradorite
Mohs 6-6.5

Mintabie Opal
Mohs 5.5-6.5

Golden Emerald
Mohs 7.5-8

Yowah Nut Opal
Mohs 5.5-6.5 (opal); ~5.5 ironstone

Rainbow Opal
Mohs 5.5-6.5

Morganite
Mohs 7.5-8

Blue Beryl
Mohs 7.5-8

Shell Opal
Mohs 5.5-6.5

Lemon Tourmaline
Mohs 7-7.5

Chocolate Garnet
Mohs 6.5-7