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Everything you ever wanted to know about apatite. Find value guidelines, scientific data, expert comments, and more in our Gemstone Listings.

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What is Gemstone Luminescence?

Gemstone luminescence is a glow that occurs when certain stones are subjected to energy such as UV light. This effect can help gemologists identify gems.

Difficult Gemstone Separations

Two of the trickiest gemstone separations to make are scapolite from citrine and apatite from tourmaline. Learn some tips for distinguishing these gems.

Gemstone Colors And Identification

Did you know most gem species can be distinguished without the element of color? Learn the role gemstone colors play in gem identification.

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Wilkeite Value, Price, and Jewelry Information

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Vanadinite Value, Price, and Jewelry Information

An overview on Vanadite Jewelry and Gemstones. Covers details and essential information on the physical properties and characteristics of Vanadite gemstone.

A World of Crystals

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