A READER HAS GIVEN ME AN AMAZING GIFT!
— Sarah Perry (@SarahGPerry) May 4, 2019
This is a sample of the mineral ULEXITE, a stone which provides NATURAL FIBRE OPTICS!
Its structure allows light to be internally transmitted through thousands of tiny fibres allowing an image to be PROJECTED onto the upper surface 💓 pic.twitter.com/FboASAEQk3
via Twitter https://twitter.com/SarahGPerry
May 04, 2019 at 01:56PM
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