Searching for Loose Gemstones?
New and used Iolite in the UK at the best prices
To find out more about Loose Gemstones, click on the 'view arrow' next to each item below. A new window will open and you'll be able to get yourself a real bargain.Cordierite is a magnesium iron aluminium cyclosilicate. Iron is almost always present and a solid solution exists between Mg-rich cordierite and Fe-rich sekaninaite with a series formula: (Mg,Fe)2Al4Si5O18 to (Fe,Mg)2Al4Si5O18. A high temperature polymorph exists, indialite, which is isostructural with beryl and has a random distribution of Al in the (AlSi)6O18 rings. Cordierite ceramic is commonly used in catalytic converters. Cordierite is named after the French geologist P. L. A. Cordier (1777 - 1861). Cordierite typically occurs in contact or regional metamorphism of argillaceous rocks. It is especially common in hornfels produced by contact metamorphism of pelitic rocks. Courtesy of Wikipedia
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| Description | Price | Ends | ||
| 0.90CT.Pretty Natural Violet Blue IOLITE Madagascar GEM | £3.28 | 05 December @ 03:02:48 |
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| 10.16ct 14p. WONDERFUL BRIOLETTE DRILLED NATURAL IOLITE | £4.99 | 05 December @ 08:54:48 |
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| TOP COLOR 2.55 Cts. NATURAL *Violetish Blue* Iolite !! | £32.85 | 05 December @ 11:48:49 |
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| 36 inch IOLITE CHIPS ON TEMPORARY STRAND | £2.88 | 05 December @ 20:07:05 |
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| LUXURIOUS VIOLET BLUE IOLITE 0.97CTS UNHEAT OCTAGON NR | £0.99 | 06 December @ 03:41:05 |
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| 1.10 Ct Mindblowing Lusstrous Natural Pair 7x5 Iolite | £6.73 | 06 December @ 16:37:05 |
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| 20.00 CT RAREST UNHEATED NATURAL CATS EYE IOLITE AAA+++ | £16.84 | 06 December @ 16:50:05 |
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| 5 PIECES OF 3mm ROUND-FACET AFRICAN IOLITE GEMS £1 NR! | £0.99 | 06 December @ 20:10:49 |
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| AA Blue Iolite 4mm microfacet Beads Sapphire color 15" | £16.51 | 07 December @ 18:13:05 |
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| 36 inch IOLITE CHIPS ON TEMPORARY STRAND | £2.88 | 07 December @ 20:35:05 |
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