Unbreakable glass inspired by seashells

https://www.mcgill.ca/newsroom/channels/news/unbreakable-glass-inspired-seashells-333730

"Strongest and toughest glass known... times stronger than the normal glass, but also more than five times more fracture resistant... architecture of nacre and replicated it with layers of glass flakes and acrylic... inspired by the inner layer of mollusk shells. Instead of shattering upon impact, the new material has the resiliency of plastic and could be used to improve cell phone screens... among other applications... composite optically transparent... By tuning the refractive index of the acrylic"

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