| beryl | | |
| n. (substance) | 1. beryl | the chief source of beryllium; colored transparent varieties are valued as gems. |
| ~ atomic number 4, be, beryllium, glucinium | a light strong brittle grey toxic bivalent metallic element. |
| ~ mineral | solid homogeneous inorganic substances occurring in nature having a definite chemical composition. |
| ~ aquamarine | a transparent variety of beryl that is blue green in color. |
| ~ emerald | a green transparent form of beryl; highly valued as a gemstone. |
| ~ morganite | a kind of pink beryl used as a gemstone. |
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