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Turquoise

Azure sky, robin’s egg blue: Vivid shades of turquoise define the color that’s named after this gem.

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Cabochon

This turquoise is cut in a cabochon: the most common shape.

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Robin’s egg

The preferred color for turquoise is a pure sky blue.

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Matrix

Some buyers prefer the presence of matrix in fashioned turquoise.

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Aggregate

Turquoise is an aggregate of microscopic crystals that form a solid mass.

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Copper

The intense blue color in this rough is due to the presence of copper.

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Veins

Veins of matrix in this turquoise are remnants of its surrounding rock.

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Tools

Research

Recent production of turquoise from Polk County, Arkansas
Turquoise from Western Arkansas

A report on turquoise from the only known U.S. deposit outside of the Southwest.

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The gems spell out “The 2000th Gem Stone Design.”
Article
Gemstone ‘Paintings’ Tell Story of a Master Craftsman, Gem and Jewelry Mentor

A jeweler who quietly built a circle of inspiration and influence lives on in generations of GIA-educated jewelers and gemologists.

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Starlet in sunglasses above title “Hooray for Hollywood
Article
M.D. Hohenstine’s Gem Displays: The Process of Creating Popular Window Art with Loose Gemstones

Jeweler M.D. Hohenstine’s spectacular window displays were a beloved tradition in downtown Columbus, Ohio, for more than 50 years.

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Handmade Starship Enterprise
“Boldly Go” with a Southwest-Inspired Starship Enterprise

An eye-catching replica from a cult TV favorite is found in Tucson.

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Remedios, home of rutilated quartz mining community.
Golden Rutilated Quartz Artisanal Mining Community

Plans to develop a collective in a remote Brazilian rutilated quartz mining community are unveiled.

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Article
Tips on Caring for Jewelry

Follow these tips to keep your jewelry treasures safe and looking their best.

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Dyed and impregnated turquoise.
Impregnated and Dyed Turquoise

Natural turquoise has been subjected to dyeing and three types of impregnation.

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Article
The Glory of Green Gems

Green gemstones, which can uplift and heal our spirits, have been popular gem choices ever since we began to adorn ourselves with jewelry.

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Turquoise with Fingerprint Pattern

A fingerprint pattern, possibly left by human skin oils during the assembly process, is observed in natural turquoise beads.

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Turquoise-Rock Crystal Composite

Examination of a faceted rock crystal backed by a slice of turquoise—an obvious but unusual combination of gem materials.

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