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St. Theresa Medal, 22 mm, 14K Yellow Gold
St. Theresa Medal, 22 mm, 14K Yellow Gold
$570.77
Sale: $428.08
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St. Theresa Medal, 18 mm, 14K Yellow Gold
St. Theresa Medal, 18 mm, 14K Yellow Gold
$345.92
Sale: $259.44
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St. Theresa Medal, 12 mm, 14K Yellow Gold
St. Theresa Medal, 12 mm, 14K Yellow Gold
$148.71
Sale: $111.53
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Tourmaline, Green

Green Tourmaline Gemstone Information
Information * Loose gemstones * Jewelry links

Tourmaline is a birthstone for the month of October and the gemstone representing the 8th wedding anniversary. It was once believed that it protects the wearer against bad decisions, many dangers, and misfortune. It is also known to attract friends and lovers. Pink tourmaline promotes female balance and protection, as green tourmaline promotes the same among males.
 

ENHANCEMENT CODE E
Click to view AGTA code.

PROPERTIES
Refractive Index 1.624-1.644
Hardness = 7-7.5 (Moh's Scale)
Specific Gravity =3.06
Species - Tourmaline
Optic Character - Double Refraction.
Phenomena - Chatoyancy,
color change (rare)


WARNINGS FOR CARE
Ultrasonic: Risky.
Steamer: Risky.
Heat: Fair-poor; may cause color change.
Chemicals that harm: none.

 

Crystal Structure
Green tourmaline crystal.
Crystal system: Hexagon, Trigonal, striated.

MAJOR SOURCES
Brazil, Afghanistan, Myanmar, India, Kenya, Madagascar, Mozambique, Pakistan, Sri
Lanka, Tanzania, US
Birthstones
 January  Garnet
February Amethyst
March Aquamarine
April Diamond
May Emerald
June Pearl/Alexandrite
July Ruby
August Peridot
September Sapphire
October Opal/Tourmaline
November Topaz or Citrine
December Blue Topaz or Zircon
Common Cut Examples.
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