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(crystalized after approx. 2h) | (crystalized after approx. 2h) | ||
[https://www.youtube.com/watch?v=XkXAaSsAlNE Crystals-Formation, Atomic properties & growing crystals 1950] | [[File:1950crystalgrowing.png]] | ||
screenshot from video on Crystal formations from the 50ies | |||
Video in full length:[https://www.youtube.com/watch?v=XkXAaSsAlNE Crystals-Formation, Atomic properties & growing crystals 1950] | |||
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