Tourmaline (Pink) 7mm. Cushion Shape "AAA" Color Matched Gems Pair ITEM#4825-27651 PRODUCT DETAILS    Stone/Shape: --    Stone/Color: --    Cut: Regular    Size: 7mm.  Approx    Weight (pcs.): 2.65 carat. Approx    Origin: Africa    Color: AAA    Clarity: EC (Eye Clean)    Treatment: Heated Price per pair. $356.16

Tourmaline (Pink) 7mm. Cushion Shape "AAA" Color Matched Gems Pair 20 % off

 

Price
$356.16 PER pair.

Tourmaline (Green) 13 to 21mm. Smooth Slice Shape "AB" Grade 6 Inch Bead Layouts ITEM#4825-20710 PRODUCT DETAILS    Stone/Shape: --    Stone/Color: --    Bead Cut: Smooth    Size: 13 to 21mm.  Approx    Weight (pcs.): 58.90 carat. Approx    Origin: Africa    Color: AA    Clarity: MI (Moderately Included)    Treatment: Heated    Length: 6 Inch    Overall Grade: "AB" Price per layout. $112.32

Tourmaline (Green) 13 to 21mm. Smooth Slice Shape "AB" Grade 6 Inch Bead Layouts 20 % off

 

Price
$112.32 PER layout.

Tourmaline (Rubellite) 17.5x12.5mm. Oval Shape "AA" Color Calibrated Cabs ITEM#4825-35433 PRODUCT DETAILS    Stone/Shape: --    Stone/Color: --    Cut: Smooth    Size: 17.5x12.5mm.  Approx    Weight (pcs.): 10.95 carat. Approx    Origin: Africa    Color: AA    Clarity: SI (Slight Inclusions)    Treatment: Heated    Overall Grade: "AB" Price per piece. $143.71

Tourmaline (Rubellite) 17.5x12.5mm. Oval Shape "AA" Color Calibrated Cabs 20 % off

 

Price
$143.71 PER piece.

Tourmaline (Pink) 10x8mm. Oval Shape "AAA" Color Single Gem Piece ITEM#4825-21034 PRODUCT DETAILS    Stone/Shape: --    Stone/Color: --    Cut: Regular    Size: 10x8mm.  Approx    Weight (pcs.): 2.10 carat. Approx    Origin: Africa    Color: AAA    Clarity: VSI (Very Slight Inclusions)    Treatment: Heated Price per piece. $239.90

Tourmaline (Pink) 10x8mm. Oval Shape "AAA" Color Single Gem Piece 20 % off

 

Price
$239.90 PER piece.

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Tourmaline's name comes from the Sinhalese word "turmali," which means "mixed." Bright rainbow collections of gemstone varieties were called "turmali" parcels. Tourmaline, occurring in more colors and combinations of colors than any other gemstone variety, lives up to its name. There is a tourmaline that looks like almost any other gemstone! Many stones in the Russian Crown jewels from the 17th Century once thought to be rubies are actually tourmalines.

Tourmaline is also of interest to scientists because it changes its electrical charge when heated. It becomes a polarized crystalline magnet and can attract light objects. This property was noticed long ago before science could explain it: in the Netherlands, tourmalines were called "aschentrekkers" because they attracted ashes and could be used to clean pipes! Tourmaline occurs in every color of the rainbow and combinations of two or three colors. Bicolor and tricolor tourmalines, with bands of colors are very popular. Sometimes the colors are at different ends of the crystal and sometimes there is one color in the heart of the crystal and another around the outside. One color combination, pink center with a green rind, is called "watermelon tourmaline" (seedless, of course!) Sometimes designers set slices of the crystal instead of faceted stones to show off this phenomenon.

Almost every color of tourmaline can be found in Brazil, especially in Minas Gerais and Bahia. Pink and green colors are particularly popular. In 1989, miners discovered tourmaline unlike any that had ever been seen before. Pink and green tourmaline are now widely available and are especially popular in designer jewelry. Blue tourmalines are also very much in demand but the supply is more limited.

In addition to Brazil, tourmaline is also mined in Tanzania, Kenya, Madagascar, Mozambique, Namibia, Afghanistan, Pakistan, Sri Lanka, and California and Maine in the United States. Maine produces beautiful sherbet colors of tourmaline and spectacular mint greens. California is known for perfect pinks, as well as beautiful bicolor.

Tourmalines a hard and durable gemstone which can withstand years of wear. You might want to avoid steam cleaning or heat.

Color: wide color range, green, blue, yellow, pink, red, brown, colorless. Bi-color is common.
Hardness: 7 – 7.5
Refractive index: 1.61 – 1.66
Density: 3.01 – 3.25
Chemical composition: (NaLiCa)(Fe11MgMnAl)3Al6((OH)4(BO3)3Si6O18)
Crystal structure: trigonal
Origins: Brazil, Madagascar, Namibia, Zambia, Sri Lanka, Burma, Russia, USA, Afghanistan.

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