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Morganite or Pink Beryl

Morganite Gemstone Rough
Morganite Rough

In the first decade of the twentieth century, several gemstone deposits were discovered in Pala, California. They include kunzite, the pink variety of spodumene and morganite, the pink variety of beryl which had been first discovered in Madagascar. Kunzite was named after the famous American gemologist, George Frederick Kunz, who spent most of his career as the chief gemologist at Tiffany & Co. Morganite was named in honor of the legendary financier and gem collector, J.P. Morgan. In fact it was Kunz who suggested naming the beryl after Morgan, who was Tiffany & Co's best customer.

Morganite belongs to the same gemstone family as emerald, aquamarine, golden beryl and bixbite. Among these beryls, morganite and the raspberry-red bixbite are the rarest. In fact bixbite is only found in the state of Utah in the USA. Morganite is not quite as scarce, but still counts as a rare variety.

There has been some attempt in the jewelry trade to change the name of morganite to "pink emerald." But this should be seen as just a marketing ploy to bring pink beryl to the attention of the public. The official mineral name for pink beryl continues to be morganite.

Oval Morganite Gemstone
Oval Morganite Gemstone

Like the other members of the beryl family, morganite is aluminum beryllium silicate. The source of the pink coloration is not well understood. Some scientists attribute morganite's color to traces of manganese, while other sources attribute the color to the element caesium. Morganite's color can vary from soft pink to violet, salmon and peach.

In common with other beryls, morganite has very good hardness, with a rating of 7.5 to 8 on the Mohs scale. The refractive index is 1.562 to 1.602. Beryl generally has a density or specific gravity of 2.66 to 2.87, but morganite is slightly denser than other beryls, at 2.71 to 2.90. Unlike emerald, which tends to have significant inclusions, morganite is usually quite clean.

Morganite is routinely heat treated to improve its delicate color and remove any yellow tones. Heating is done at relatively low temperatures (about 400 degrees centigrade) to achieve this effect.

Morganite deposits are found in Afghanistan, Brazil, China, Madagascar, Mozambique, Namibia, Zimbabwe and the USA (California and Maine).

  • Première publication: July-09-2008
  • Dernière mise à jour: November-14-2017
  • © 2005-2019 GemSelect.com tous droits réservés.
    Reproduction (texte ou graphique), sans le consentement écrit de GemSelect.com (SETT Company Ltd) est strictement interdite.
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