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Basics about Tourmaline

Birthstone of October *1 - Ore mined in mines

Beautiful tourmaline necklace Tourmaline is a natural ore mined in mines. It has been highly valued as one of the birthstones of October.

It has many color variations including white, black, pink and so on. It can be a precious stone.

Colorful tourmaline necklaces can be great gifts as they are popular among all ages.

It is mined mainly in Brazil, China and Israel. Japanese tourmaline is often more expensive because only a small amount can be mined.

*1 Birthstones have not been chosen scientifically but they have been chosen based on legends.

Also known as Electronic Stone

Tourmaline has been known as a miracle stone which generates electricity since the beginning of the 18th century.
It was named as "Electronic Stone" by Carolus Linnaeus (1707-1778), Swedish botanist and physician.

In the 19th century, the brothers Pierre and Jacques Curie and Riecke elucidated how tourmaline generates electricity.

Beneficial effects on health in 1990's

Tourmalines' positive effects particularly on the human body started to attract attention in the 1990's. It is believed that the effects are due to the electronic properties of tourmaline and the chemical elements contained in the stone.

Various effects on animals and plants have also been reported.

Generates negative ion

Tourmaline generates negative ions when external force is applied.
While the generation processes have not been fully elucidated, it is believed that it is due to the piezoelectric properties of tourmaline.

Tourmaline generates little amount of negative ions when not in motion because atmospheric pressures and air friction are the only external force applied to it. However, the negative ions are cancelled out by positive ions floating in the air. This is why almost no negative ion can be detected when tourmaline is not in motion.

Thermal effects

Tourmaline bedding products make you feel warm. It is believed that tourmaline emits (far) infrared rays. This characteristic is utilized to melt snow in areas affected by heavy snowfall.
Author: Masaharu Nemoto
(Universal Plan Co., Ltd.)
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Ecological Tourmaline Sheet 2mX1m (78"X39") (Tourmaline Sheet)

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Ecological Tourmaline Sheet 2mX1m (78
Tourmalines' beneficial effects on health
Related pages of: Basics about Tourmaline
Contents of: What is Tourmaline?
Contents of: Theory (Negative ion & Tourmaline)
· Negative Ion Generators
· Ion Counter
· Tourmaline Sheet
· Tourmaline Stones Powder
· Necklace
· Bracelet
· Bath Products
· Supporter
· Negative Ion Clothing
· Tourmaline Bedding
· Girdle
· Home remedies for stiff neck
· Cosmetics

· Tourmaline Products
What is a Negative Ion? (13)
What is Tourmaline? (7)
Tourmaline explorer (11)
Negative Ion FAQ (53)
Ideal amount of negative ions (1)
Actual negative and positive ion measurements featured in literature and media (1)
How to Choose the Best Negative Ion Generator (aka. Ionizer) (1)
How to Choose the Best Air Ion Counter (1)
How to Choose the Right Negative Ion Products (9)
Misunderstanding about negative ions (10)
Theory of Air Ion (1)
Measurement Theory of Air Ion (1)
Negative ion effects reported in medical literature (13)
Lenard effect (2)
Negative ion counter comparison chart (2)
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