Fire in a stone

Lovely luminous labrodorite.

This feldspar mineral rich in calcium, was first found in Labrador, Canada in the late 1700's.

Legend has it that the Northern Lights were once stuck inside rocks on the Canadian coast until a brave warrior freed most of them by hitting the rocks with a spear. Those not struck still retain the borealis.

What a cool story.

That borealis play of light within the stone often called Schiller is caused by light bouncing back (diffraction) between internal fractures (lamellae) in the mineral and refracting back to your eyes. What?

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