Quinn, Helen (6 juni 2013). ”How ancient collision shaped New York skyline”. BBC Science. BBC.co.uk. https://www.bbc.co.uk/news/science-environment-22798563. Läst 13 juni 2013. ”Prof Stewart was keeping an eye out for a mineral known as kyanite, a beautiful blue specimen commonly seen in the Manhattan schist. 'Kyanite is a key mineral to identify, we know it only forms at very deep depths and under extensive pressure,' he said. 'It's like a fingerprint, revealing a wealth of information.' The presence of this mineral reveals that the Manhattan schist was compressed under incredibly high pressure over 300 million years ago. The schist formed as a result of two enormous landmasses coming together to form a supercontinent, known as Pangaea.”
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M. Gaft (August 2011). ”Laser-induced time-resolved luminescence of orange kyanite Al2SiO5”. Optical Materials 33 (10): sid. 1476–1480. doi:10.1016/j.optmat.2011.03.052.
