| Reference List: | Dano, M. & Soerensen, H. (1959): An examination of some rare minerals from the nepheline syenites of southwest Greenland. Meddelelser om Groenland 162 (no. 5), 1-35.
Soerensen, H. (1962): On the occurrence of Steenstrupine in the Ilimaussaq massif, southwest Greenland, Meddelelser om Groenland, Reitzels Forlag Koebenhavn
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