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#luxullianite — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #luxullianite, aggregated by home.social.

  1. CW: fossicking in Cornwall

    Some larger #schorl #tourmaline crystals I managed to find inside some #luxullianite. Tourmaline is recognisable by it's long prismatic 'habit', the crystals also have a tendency to change colour along their length. Big ones are valuable as gemstones and apparently they might have been used as navigational aids for #Vikings (used to detect the sun's position pre-dawn or in cloudy conditions).