| Webster's Online Dictionary |
| Part of Speech | Definition | |
| Expression | 1. A transparent variety of calcite, or crystallized calcium carbonate, brought from Iceland, and used in certain optical instruments, as the polariscope.[Websters]. | |
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| Expressions | Definition | ||
| Iceland crystal | A transparent variety of calcite, or crystallized calcium carbonate, brought from Iceland, and used in certain optical instruments, as the polariscope. Source: Webster's Revised Unabridged Dictionary. | ||
Source: compiled by the editor from various references; see credits. | Top | ||
| Expressions | Domain | Definition | |
| Iceland crystal | Mining | See: Iceland spar. (references) | |
Source: compiled by the editor from various references; see credits. | Top | ||