Iceland+spar
11Iceland spar — calcite (calcium carbonate) …
12Iceland spar — noun a transparent variety of calcite, showing strong double refraction …
13Iceland spar — /aɪslənd ˈspa/ (say uysluhnd spah) noun a transparent variety of calcite that is double refracting and is used for polarising light …
14Iceland spar — n. a transparent variety of calcite with the optical property of strong double refraction …
15Spar (mineralogy) — Spar is a term that is used to refer to a category of crystals that have readily discernible faces. Crystallized, earthy, and some metallic, a spar will easily break into rhomboidal, cubical, or laminated fragments with polished surfaces, but… …
16iceland-crystal — n. See iceland spar …
17iceland crystal — noun see iceland spar …
18calcareous spar — Iceland spar, Iceland crystal, crystallized carbonate of lime …
19List of Iceland-related articles — For a topical list, see List of basic Iceland topics Articles (arranged alphabetically) related to Iceland include: NOTOC 1 9 1. deild karla 101 Reykjavík 12 Tónar 1924 28 Nordic Football Championship 1929 32 Nordic Football Championship 1933 36… …
20calcareous spar — Calcite Cal cite (k[a^]l s[imac]t), n. [L. calx, calcis, lime.] (Min.) Calcium carbonate, or carbonate of lime. It is rhombohedral in its crystallization, and thus distinguished from aragonite. It includes common limestone, chalk, and marble.… …