SEDIS - Thesaurus
glasses  | |
|---|---|
| BT | igneous rocks |
| .volcanic rocks | |
| ..glasses | |
| NT | obsidian |
| palagonite | |
| perlite | |
| pitchstone | |
| volcanic glass | |
| zirkelite | |
| UF | glass |
| RT | pyroclastics |
| amorphous materials | |
| tektites | |
| Darwin glass | |
| devitrification | |
| vitrification | |
| maskelynite | |
| palagonitization | |
| SN | Use volcanic glass if applicable. Glass materials may be used for natural, nonvolcanic materials. Before 1981, search pyroclastics and glasses. |
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