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1/2 Pound Tumbled Black Tourmaline Schorl Crystals

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1/2 Pound Tumbled Black Tourmaline Schorl Crystals
$14.00

Availability: In stock

Tumbled Schorl Black Tourmaline

You will receive 0.5 lbs (0.22 KG) 

Great for craft projects or decorative stones.

Pieces range in size around 0.5 to 1 inches 


1 inch = 2.54 cm

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Description

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Tourmaline is a crystalline boron silicate mineral compounded with elements such as aluminium, iron, magnesium, sodium, lithium, or potassium. Tourmaline is classified as a semi-precious stone and the gemstone comes in a wide variety of colors.

 
Brightly colored Ceylonese gem tourmalines were brought to Europe in great quantities by the Dutch East India Company to satisfy a demand for curiosities and gems. At the time, it was not realized that schorl and tourmaline were the same mineral, as it was only about 1703 that it was discovered that some colored gems were not zircons.[citation needed] Tourmaline was sometimes called the "Ceylonese Sri Lankan Magnet" because it could attract and then repel hot ashes due to its pyroelectric properties.
 
Tourmalines were used by chemists in the 19th century to polarize light by shining rays onto a cut and polished surface of the gem.
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