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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 bluish violet 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 12mm Round Gemstone Cabochon

Iolite 12mm Round Gemstone Cabochon

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

£3.50

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 36x27mm Oval Gemstone Cabochon

Iolite 36x27mm Oval Gemstone Cabochon

Ref:20644 Iolite36x27mm Oval Loose Gemstone Cabochon7mm profile56ct/11.2gm..

£20.00

Iolite 4mm Round Gemstone Cabochon Pair

Iolite 4mm Round Gemstone Cabochon Pair

Ref:1002 Iolite  4mm Round Gemstone Cabochon Pair  2.5mm profile  1ct/0.2gm &nbs..

£2.50

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 6mm Square Gemstone Cabochon Pair

Iolite 6mm Square Gemstone Cabochon Pair

Ref:1005 Iolite  6mm Square Gemstone Cabochon Pair  3mm profile  1.5ct/0.3gm &nb..

£4.00

Iolite 6x4mm Oval Loose Gemstone Cabochon Pair

Iolite 6x4mm Oval Loose Gemstone Cabochon Pair

Ref:22533 Iolite  6x4mm Oval Loose Gemstone Cabochon Pair  3mm profile  4.0 ct/0..

£3.50

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

Iolite 13x9mm Oval Cabochon

Iolite 13x9mm Oval Cabochon

Iolite 13x9mm Oval Loose Gemstone Cabochon 5 mm profile 5.05 ct / 1.01 g ..

£10.10

Iolite 18x14mm Oval Rose Cut Gemstone

Iolite 18x14mm Oval Rose Cut Gemstone

Iolite 18x14mm Oval Rose Cut Gemstone 3.8 mm profile 6.60 ct / 1.32 g ..

£13.20

Iolite 19x12mm Rectangular Rose Cut Gemstone

Iolite 19x12mm Rectangular Rose Cut Gemstone

Iolite 19x12mm Rectangular Rose Cut Loose Gemstone 4 mm profile 7.40 ct / 1.48 g ..

£14.80

Iolite 20x12mm Oval Rose Cut Gemstone

Iolite 20x12mm Oval Rose Cut Gemstone

Iolite 20x12mm Oval Rose Cut Gemstone 5 mm profile 8.60 ct / 1.72 g ..

£21.50

Iolite 22x10mm Drop Shaped Rose Cut Gemstone

Iolite 22x10mm Drop Shaped Rose Cut Gemstone

Iolite 22x10mm Drop Shaped Rose Cut Gemstone 4.2 mm profile 6.05 ct / 1.21 g ..

£12.10

Iolite 23x16mm Oval Rose Cut Gemstone

Iolite 23x16mm Oval Rose Cut Gemstone

Iolite 23x16mm Oval Rose Cut Loose Gemstone 5 mm profile 12.95 ct / 2.59 g ..

£25.90

Iolite 24x18mm Oval Rose Cut Gemstone

Iolite 24x18mm Oval Rose Cut Gemstone

Iolite 24x18mm Oval Rose Cut Gemstone 5 mm profile 15.85 ct / 3.17 g ..

£30.99

Iolite 24x23mm Drop Shaped Rose Cut Gemstone

Iolite 24x23mm Drop Shaped Rose Cut Gemstone

Iolite 24x23mm Drop Shaped Rose Cut Loose Gemstone 6.5 mm profile 20.25 ct / 4.05 g ..

£39.99

Iolite 43x17mm Drop Shaped Rose Cut Gemstone

Iolite 43x17mm Drop Shaped Rose Cut Gemstone

Iolite 43x17mm Drop Shaped Rose Cut Loose Gemstone 6 mm profile 29.65 ct / 5.93 g&nbs..

£59.30

Iolite 4mm Square Cabochon x 4

Iolite 4mm Square Cabochon x 4

Iolite 4mm Square Cabochon Gemstone x 4 2mm profile approx. 1.45 ct / 0.29 g approx.&..

£4.99

Iolite 9x7mm Oval Cabochon Pair

Iolite 9x7mm Oval Cabochon Pair

Iolite 9x7mm Oval Loose Gemstone Cabochon Pair3.5 mm profile, approx.3.5 ct / 0.7 g, approx...

£4.00

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