historyanalysisThe Conversation1940–1941 · Ivittuut, Greenland

In World War II’s dog-eat-dog struggle for resources, a Greenland mine launched a new world order

the gist

In 1940, Greenland became strategically vital to the United States because its Ivittuut mine was the world's only reliable source of cryolite, a mineral needed to refine bauxite into aluminum at a manageable temperature. Refining without cryolite required heat above 2,000 degrees Fahrenheit, while cryolite brought it down to about 900 degrees. Aluminum made up much of a heavy bomber's engines, wings and fuselage, so the mine effectively limited how many aircraft America could build. After Germany occupied Denmark in April 1940, the U.S. sent Coast Guard cutters and later volunteers to guard the mine, long before entering the war.

how it works

Aluminum is extracted from bauxite ore by electrolysis in a bath of molten cryolite. Cryolite lowers the melting temperature of the mixture, so the process runs at roughly 900 degrees Fahrenheit instead of over 2,000. Without it, producers would need far more energy and heat-resistant equipment, and the metal would be far harder to make in quantity. The Nazis had a substitute based on fluorspar, but the U.S. preferred the more efficient cryolite.

so what

Roosevelt's plan to build 50,000 aircraft a year depended on it, and the U.S. widened its claims on Greenland by calling it part of the Western Hemisphere. Historians often cite it as an early example of resource-driven security, a theme that returns whenever critical minerals become scarce.

the bigger pattern

Resource dependence has repeatedly shaped foreign policy. Rubber from the Dutch East Indies and Malaysia became scarce after Japan's advances in 1942, which pushed the U.S. to develop synthetic rubber. The same pattern of seeking secure supplies of strategic materials recurs in discussions of critical minerals today.

more on this

background

Ivittuut (formerly, Ivigtût; Greenlandic for "Grassy Place") is an abandoned mining town near Cape Desolation in southwestern Greenland, in the modern Sermersooq municipality on the ruins of the former Norse Middle Settlement.

Ivittuut is one of the few places in the world so far discovered to have naturally occurring cryolite (Na3AlF6, sodium aluminum fluoride), an important agent in modern aluminum extraction.

From Wikipedia: Ivittuut (CC BY-SA 4.0) ↗

key facts

Country
Greenland
Located in
Sermersooq
Population
0
Area
600 km²
Founded
1951

Facts: Wikidata (CC0)

Illustrative photo · Yoka donation, Public domain, via Wikimedia Commons