Value and Care

Due to its typical clear crystallinity, it exhibits a fine cut and polish. Depending on the individual chemistry of a crystal, morganite is commonly irradiated and annealed to intensify the color, or heat treated to remove yellow or orange tones and further improve its color. Much of the Mozambique morganite currently on the market is irradiated and annealed to create a soft peachy-pink color. Morganite's pinkest hues are most popular for today's jewelry market and therefore most valuable. If the morganite is treated, the treatment is very stable, so morganite requires no special care other than avoiding exposure to high heat. As long as the stone isn't included, ultrasonic cleaners should be safe. The best way to clean morganite is with warm soapy water and a soft brush or cloth. It is the pink analog to aquamarine and can be cared for in the same way.

Phenomenon and Facts

In rare cases, morganite can display chatoyancy (the cat's-eye effect) or asterism (a star) if cut to display such effects. Unlike many stones that can be quite included--especially emerald, the green variety of beryl--inclusions in morganite are rare. Clean, larger crystals are the norm and inclusions (unless they create asterism or chatoyancy) count against a stone's value. Due to the soft pastel nature of the color, large sizes show it off best. The largest known faceted morganite is a 598.70-carat cushion-shaped gem from Madagascar that can be found in the British Museum collection.

Sources of Morganite

Some major morganite sources are Brazil, Mozambique and Madagascar. Among gemologists, Madagascar is known as the “Island of Beryls” ( Île de Béryls), as so many types of beryl are found there – goshenite, aquamarine, emerald and morganite. Other sources include Afghanistan, China, Namibia, Russia, and the U.S.

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