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American Gems
 
Color   Seafoam Tourmaline is a member of the tourmaline family. The colors range from soft greens to moderate blues, like the fringes of ocean waves, or the depths of a still lagoon.
   
Gem Family   This rare bluish green tourmaline is mined high in the peaks of the Himalayas. The uncut crystals are often long and thin: the miners call them pencils.
   
Source   Mostly Afghanistan, and some from Zambia and Namibia
   
Clarity   All Seafoam Tourmalines are free of eye-visible inclusions.
   
Size Range   0.25 carat to 3 carats. Rare large sizes are occasionally found up to 30 carats.
   
Shapes Available   Ovals, cushions, checkerboards, round brilliants, trillions, princess cuts, barion cuts, emerald cuts, and opposed bars.
   
Enhancement   Seafoam Tourmaline is the exact color of the rough uncovered in the earth. It is not enhanced in any way.
   
Lore & History   Tourmaline's name comes from the Sinhalese word turmali, which means "mixed." Tourmaline is the most colorful gem variety. Perhaps this is why ancient mystics believed tourmaline could encourage artistic intuition: it has the palette to express every mood. Seafoam Tourmaline has a chameleon-like ability to complement almost every other color, including sorbet shades, earth tones, and vivid brights.
   
Toughness & Hardness   Tourmaline has a Mohs hardness of 7 to 7.5 and is durable and suitable for everyday wear.
   
Care & Cleaning   Clean with mild dish soap: use a toothbrush to scrub behind the stone where dust can collect.
   
Price Range   $150 to $800 per carat. Exceptionally fine gems can command even higher per carat prices..
   
Special Characteristics   Tourmaline has unusual electrical properties: crystals acquire a polarized electrical charge when heated or compressed. This property has also made tourmaline the latest miracle ingredient in cleansing lotions: manufacturers say the gem can increase a product's ability to pull pollutants from the pores.