Watch it here: https://vimeo.com/247710376
Breiðdalssetur in Helgustaðanáma quarry in television channel N4 "Að austan" from November 17th 2016
Staff of Breiðdalssetur is showing Iceland spar and its double refraction to the guests
October 10th 2015 in á Norðfjörður
Iceland spar and its importance to the history of mankind: Symposium and exhibition opening:
Presentations as pdf (in Icelandic):
At Helgustaðanáma quarry on August 29th 2015 Picture in Helgustaðir quarry in 1956 by GPL Walker
Article about symposium in East Iceland magazine Glettingur: Glettingur 64 - 2015 - Silfurberg – grunn nútímasamfélagsins er að finna á Austurlandi, Málþing í Breiðdalssetri - Feucht et al.
The project contains:
1. Exhibition put up at Breiðdalssetur in Breiðdalsvík this sumar, then later to be moved to Eskifjörður
2. Information brochure about Iceland Spar
3. Symposium with focus on the mineral Iceland Spar on August 29th 2015 in Breiðdalsvík with excursion to Helgustaðanáma quarry (supported by Alcoa)
Iceland spar double refracts the light, everything appears twice, picture by (Einarsson & Sæmundsson 2013)
Friday 29th April, 12:15 Leó Kristjánsson is holding a lecture about Iceland spar in East Iceland, its use and importance. Leó Kristjánsson is geophysicist at the University of Iceland. The last 16 years he has collected data about the use of Iceland spar crystals in science. Most of these crystals came from Helgustaðir, East Iceland until around 1900. The crystals contributed a lot to the discovery of optics and more. With the discovery of the so called Nicol-prism that is built of 2 Iceland spar crystals that were used in all optical instruments in different fields of natural sciences, it is sure that Icelandic Iceland spar accelerated many technical progresses and discoveries that seem self-evident to mankind today. Everybody welcome.
Iceland Spar from Breiðdalur valley