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cordierite
(redirected from Iolite)

   Also found in: Dictionary/thesaurus, Wikipedia 0.09 sec.

cordierite

Silicate mineral, (Mg,Fe)2Al4Si5O18, blue to purplish in colour. It is characteristic of metamorphic rocks formed from clay sediments under conditions of low pressure but moderate temperature; it is the mineral that forms the spots in spotted slate and spotted hornfels.



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the Blu Starr Gemstone property, also situated in southern British Columbia, hosts a variety of gemstone discoveries (star-sapphire, gem garnet, iolite, aquamarine, tourmaline, titanite, moonstone and several varieties of quartz crystals).
The property hosts numerous occurrences of sapphire (15), iolite or gem-cordierite (11), gemstone quality garnet (2), as well as a flake graphite deposit; other minerals include aquamarine (beryl), tourmaline, titanite, moonstone and several varieties of quartz crystals.
The Company is mainly focused on development of colored gemstone projects in the Nelson, British Columbia area, where deposits containing iolite, gem quality red garnet and star sapphire/corundum have been located.
 
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