Gem News InternationalGems & Gemology, Spring 2014, Vol. 50, No. 1

Gem Crystals – Tucson 2014

Duncan Pay

Tanzanite crystal with calcite crystals
Figure 1. Tiny calcite crystals adhering to the surfaces of this superb tanzanite crystal, along with the brown coloration around its base, are strong indicators that the material has not been heated. The crystal weighs 500.45 ct and measures approximately 8 cm in length. Photo by Eric Welch; courtesy of New Era Gems.

At the Pueblo Show, Steve Ulatowski (New Era Gems, Grass Valley, California) told us how the dynamics of his business have shifted from facet-quality rough to crystal specimens, which now make up more than 80% of his turnover by dollar value. In particular, small gem crystals in wire-wrapped jewelry now form a large part of his commerce.

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