noun
- A transparent calcite found in Iceland and used in polarizing microscopes. .
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). iceland spar. Retrieved September 22, 2026, from http://smartdefine.org/iceland_spar/definitions/1248867 |
| Chicago | WordNet. 2010. "iceland spar" http://smartdefine.org/iceland_spar/definitions/1248867 (accessed September 22, 2026). |
| Harvard | WordNet 2010, iceland spar, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/iceland_spar/definitions/1248867>. |
| MLA | WordNet. "iceland spar" 23 October 2010. Web. 22 September 2026. <http://smartdefine.org/iceland_spar/definitions/1248867> |