|
|
|
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.
View examples of cut green tourmaline below
and prices in our store section.
|
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
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 |
Round cut. |
Oval
shape.
|
Pear shape. |
Emerald cut. |
Heart
shape. |
Step cut. |
Marquise cut.
|
Trillion cut. |
Straight baguette. |
Round cabochon. |
Oval cabochon.
|
Square cabochon.
Buff top, faceted bottom. |
|
|
