SEDIS - Thesaurus
corundum  | |
|---|---|
| BT | oxides |
| .corundum | |
| RT | corundum deposits |
| gems | |
| alumina | |
| aluminum oxides | |
| amethyst | |
| rubies | |
| sapphire | |
| SN | As of 1981, use corundum deposits for corundum as a commodity (abrasives). |
| corundum deposits | |
|---|---|
| RT | abrasives |
| corundum | |
| industrial minerals | |
| SN | For corundum as a gem, use corundum and gems. Commodity. See List C. For corundum as a gem, index the specific type of gem. |
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