Scientists figure out origin of cobalt-blue spinel in Canada's Arctic

Small spinel stones with good transparency and fine cobalt-blue colour can sell for about 10 times the price of a comparable sapphire.

Spinel Color and Magnetism, Blue Spinel and Cobalt Spinel

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Moose River Basin: geology and mineral potential - Geology Ontario

Publications, Department of Physics

Rui Galopim de Carvalho on LinkedIn: #gemology #minerals #gemstone #geology #spinel

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A) Corundum (sapphire) gemstones from the Kimmirut occurrences. Left

Diamond - Wikipedia

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Spinel - Encyclopedia

Talc: Mineral information, data and localities.

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GIL Certified 1.79 Carat Cobalt Blue Natural Spinel from Burma Untreated For Sale at 1stDibs

Cobalt Blue Peep Hole Glass at best price in Kolkata by Shree Ram Auto (India)

Cobalt Blue Dark

Making Cobalt Blue: Part 1

1 qt. #PPU15-03 Dark Cobalt Blue Interior Chalk Decorative Paint

Candy Pearl Cobalt Blue Gallon with Reducer (Candy Midcoat Only) Auto Paint Kit - Fast