| NOM | substance | gemma opaca | a gemstone that is opaque |
|---|
| Sentit | A gemstone that is opaque. | |
|---|---|---|
| Específic | corall, corall vermell | The hard stony skeleton of a Mediterranean coral that has a delicate red or pink color and is used for jewelry |
| crisoberil | A rare hard yellow green mineral consisting of beryllium aluminate in crystal form | |
| diaspre, jaspi | An opaque form of quartz | |
| jade | A semiprecious gemstone that takes a high polish | |
| lapislàtzuli | An azure blue semiprecious stone | |
| turquesa | A blue to grey green mineral consisting of copper aluminum phosphate | |
| ull de gat | Any of various gems (as chrysoberyl or chalcedony) that reflect light when cut in a rounded shape | |
| òpal | A translucent mineral consisting of hydrated silica of variable color | |
| General | gemma, pedra preciosa | A crystalline rock that can be cut and polished for jewelry |
| Anglès | opaque gem | |
| Espanyol | gema opaca | |
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