Eudialyte- but still a horse
Article Abstract:
Eudialyte was first described from the Ilimaussaq intrusion near Nassaq in Western Greenland, where it forms conspicuous red and brownish crystals and irregular masses. Eudialyte is discussed in terms of characteristics like formula, color, luster, streak color, Moh's hardness, specific gravity, crystal system, cleavage and fracture.
Publication Name: Lapidary Journal
Subject: Hobbies and crafts
ISSN: 0023-8457
Year: 2006
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Tugtupite: An impressionable gem
Article Abstract:
The impressionable gem, Tugtupite, was discovered in the 1950s in Greenland and was initially wrongly thought to be a beryllium-rich variety of sodalite. It is a valid species in its own right with characteristics peculiar to itself, such as a reversible change of color in and out of sunlight and an extraordinary fluorescence.
Publication Name: Lapidary Journal
Subject: Hobbies and crafts
ISSN: 0023-8457
Year: 2005
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