Iolite

Iolite is called the violet stone. Its colour ranges include blue, brown, yellow, dark violet, grey and green. But gem quality  iolite is generally violet blue colour. This gemstone also exhibits pleochroic qualities. Which means that the violet blue colour is visible, until the stone is turned through 90 degrees. Then it will display a more bluish brown colour. And then if that stone is turned on its side, it may display a completely new shade of blue or brown.

Iolite was also called the 'Vikings Compass'. Because the pleochroic effect works by determining the direction that light waves are traveling. Very useful for determining the suns position on overcast days. With a well polished piece of iolite and a good understanding of the way that the colours shift within stone, in relation to the sun, and you could theoretically navigate your way across the Atlantic. Regardless of the weather, as it's the polarization that affects the stone. Not the sun. What an amazing reason for a gemstone based prized possession. [How to Catch a Robot Rat by Agnes Guillot, Jean-Arcady Meyer, Susan Emanuel (2010)]


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Iolite 10mm Round Gemstone Cabochon Pair

Iolite 10mm Round Gemstone Cabochon Pair

Ref:2370 Iolite  10mm Round Gemstone Cabochon Pair  5mm profile  7.5ct/1.5gm &nb..

£5.50

Iolite 10mm Square Gemstone Cabochon Pair

Iolite 10mm Square Gemstone Cabochon Pair

Ref:9882 Iolite  10mm Square Gemstone Cabochon Pair  4mm profile  9ct/1.8gm &nbs..

£4.00

Iolite 10mm Triangular Gemstone Cabochon

Iolite 10mm Triangular Gemstone Cabochon

Ref:0214 Iolite  10mm Triangular Gemstone Cabochon  5.5mm profile  4ct/0.8g..

£3.00

Iolite 12mm Round Gemstone Cabochon

Iolite 12mm Round Gemstone Cabochon

Ref:0411 Iolite  12mm Round Gemstone Cabochon  6.5mm profile  7ct/1.4gm  Fo..

£3.00

Iolite 20x15mm Trapezium Cut Gemstone Cabochon

Iolite 20x15mm Trapezium Cut Gemstone Cabochon

Ref:6162 Iolite  20x15mm Trapezium Cut Gemstone Cabochon  4.5mm profile  10ct/2gm&nbs..

£2.50

Iolite 22x31mm Pear Cut Gemstone Cabochon

Iolite 22x31mm Pear Cut Gemstone Cabochon

Ref:0770 Iolite  22x31mm Pear Cut Gemstone Cabochon  7.5mm profile  31ct/6.2gm &..

£11.50

Iolite 30x10mm Trapezium Cut Gemstone Cabochon

Iolite 30x10mm Trapezium Cut Gemstone Cabochon

Ref:0962 Iolite  30x10mm Trapezium Cut Gemstone Cabochon  6.5mm profile  13ct/2.6gm&n..

£5.00

Iolite 30x23mm Oval Gemstone Cabochon

Iolite 30x23mm Oval Gemstone Cabochon

Ref:4110 Iolite  30x23mm Oval Gemstone Cabochon   11.5mm profile  63.5ct/12.7gm ..

£24.00

Iolite 31x21mm Kite Cut Gemstone Cabochon

Iolite 31x21mm Kite Cut Gemstone Cabochon

Ref:1426 Iolite  31x21mm Kite Cut Gemstone Cabochon  6mm profile  25ct/5gm  ..

£3.50

Iolite 3mm Round Gemstone Cabochon Pair

Iolite 3mm Round Gemstone Cabochon Pair

Ref:0791 Iolite  3mm Round Gemstone Cabochon Pair  2mm profile  0.5ct/0.1gm &nbs..

£2.00

Iolite 5mm Round Gemstone Cabochon Pair

Iolite 5mm Round Gemstone Cabochon Pair

Ref:3839 Iolite  5mm Round Gemstone Cabochon Pair  3mm profile  1ct/0.2gm  ..

£3.00

Iolite 8mm Round Gemstone Cabochon Pair

Iolite 8mm Round Gemstone Cabochon Pair

Ref:9874 Iolite  8mm Round Gemstone Cabochon Pair  5mm profile  5ct/1gm  Fo..

£5.00

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