Definition
| • | A mineral occurring in rhombic prisms, generally yellowish and pellucid, also colorless, and of greenesh, bluish, or brownish shades. It sometimes occurs massive and opaque. It is a fluosilicate of alumina, and is used as a gem. |
| • | Either one of two species of large, brilliantly colored humming birds of the Topaza, of South America and the West Indies. |
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