Title | Thomsenolite from Ivigtut, Greenland |
Description | Thomsenolite, NaCaAlF6·(H2O), with siderite, FeCO3, from Ivigtut, Greenland. Thomsenolite is typically an alteration product formed after cryolite, Na3AlF6. This sample, from Ivigtut (where the world's largest known cryolite deposit is being mined) is about 6 cm across. |
Location | Greenland ▹ Arsukfjord. Near Ivigtut. |
Photographer | Shannon Heinle. 2001-03-07. |
Collection | University of North Dakota Mineralogy Collection #288. |
Key words | thomsenolite, cryolite, Greenland, Ivigtut |
Tech details | 333 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
GeoDIL number | 190 |
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