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Diana Jarrett

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Diana Jarrett

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Blue Spinel Turning Heads

Well worth a fresh inspection under the loupe is some fine blue spinel currently on the market. An ancient group of related minerals, spinel likely owes its name to the Old Latin sintill — from which the word scintillation was derived. And a…

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What is Red Labradorite?

Orange and red stones of every kind stood out at this years sensory-overloaded Tucson gem and mineral shows, but one major puzzle for gem lovers was an orange-red feldspar with an identity crisis.
At one exhibit, the dealer called the…