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You are here: Home The Rock Professor Tourmaline

The Rock Professor has provided you with a mineral
information card. Print on stock paper, and cut out to
enhance your rock and mineral products.

 

To print: with your cursor, highlight the entire card below,
right click and select print, then click on "selection" and print.

THE ROCK PROFESSOR

Example of TOURMALINE in the Rock Professor

Photo by Roger Weller,
Cochise College

TOURMALINE
The tourmaline group refers to a number of related species and varieties of minerals. Tourmaline is a complex crystalline silicate containing aluminum, boron, and other elements, and is used in electronic instrumentation and, especially as a gemstone in its green, clear, and blue varieties.

Although tourmaline has been known since ancient times, it was only imported by the Dutch from Sri Lanka in 1703. The name "tourmaline" is derived from a Sinhalese name, "turamali," meaning "stone with mixed colors."

Follow the links below to read about some of the varities of TOURMALINE.

SOME VARIETIES OF TOURMALINE: DRAVITE, INDICOLITE, REBELLITE, SCHORL, SIBERITE, VERDELITE, ELBAITE, WATERMELON TOURMALINE

Chemical Group: Silicate ♦ Group: Tourmaline ♦ Crystal forms: Trigonal system ♦ Color: black, brown, dark blue, colorless, pink, red, green, blue and even multicolored.
Crystals frequently contain two or more colors ♦ Luster: Vitreous ♦ Transparency: Transparent to opaque ♦ Fracture: Conchoidal ♦
Cleavage: Poor ♦ Moh's hardness: 7.5 ♦
Localities: Brazil; The USA from Maine, New Hampshire, South Dakota, California.

Results 1 - 8 of 26
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About Tourmaline

Multi_Stone_Tour_50a2b42d7aa74

Multi-Stone Tourmaline Pendant JWL 1182

Multi-Stone Tourmaline Pendant JWL 1182

Sales price: $60.00

Product details

Multi_Stone_Tour_50a2b4c711d8e

Multi-Stone Tourmaline Pendant JWL 1181

Multi-Stone Tourmaline Pendant JWL 1181

Sales price: $76.00

Product details

Multi_Stone_Tour_50a2b738cfff7

Multi-Stone Tourmaline Pendant JWL 1183

Multi-Stone Tourmaline Pendant JWL 1183

Sales price: $79.00

Product details

Multi_Stone_Tour_50a2b7aa5b919

Multi-Stone Tourmaline Pendant JWL 1556

Multi-Stone Tourmaline Pendant JWL 1556

Sales price: $89.00

Product details

Rubellite_Tourma_50a2b819bba39

Rubellite Tourmaline Necklace JWL 1257

Rubellite Tourmaline Necklace JWL 1257

Sales price: $95.00

Product details

Tourmalinated_Qu_509ec4a796398

Tourmalinated Quartz & Ammonite Pendant JWL 1188

Tourmalinated Quartz Pendant JWL 1188

Sales price: $70.00

Product details

Tourmalinated_Qu_509ec52da970b

Tourmalinated Quartz Pendant JWL 1187

Tourmalinated Quartz Pendant JWL 1187

Sales price: $72.00

Product details

Tourmalinated_Qu_509ec5b20b1b1

Tourmalinated Quartz Pendant JWL 1190

Tourmalinated Quartz Pendant JWL 1190

Sales price: $58.00

Product details

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Refund Policy

We are willing to accept a return on any item that you’re not happy with. Give us a call or email to arrange for the return.

Conditions:

· Merchandise may be returned within 10 days of the date of receipt.
· Returned items must be in original condition
· Goods must be in their original packaging.
· Upon receipt of the return, we will credit the card you used for payment for the amount of the purchase, less shipping.