| obsidian → ReceivesAction → formed | 0.57 | |
| obsidian → ReceivesAction → formed as lava | 0.54 | |
| obsidian → ReceivesAction → used to make tool | 0.54 | |
| obsidian → ReceivesAction → used to make blade | 0.53 | |
| obsidian → ReceivesAction → used to make scraper | 0.43 | |
| obsidian → ReceivesAction → valued in stone age cultures | 0.41 | |
| obsidian → ReceivesAction → used in addition | 0.38 | |
| obsidian → ReceivesAction → formed by rapid cooling of visc… | 0.29 | |
| obsidian → ReceivesAction → mined with a diamond pickaxe | 0.29 | |
| obsidian → ReceivesAction → obtained | 0.29 | |
| obsidian → ReceivesAction → used in cardiac surgery | 0.29 | |
| obsidian → ReceivesAction → associated with guardian spirits | 0.25 | |
| obsidian → ReceivesAction → created | 0.25 | |
| obsidian → ReceivesAction → recovered at site | 0.25 | |
| obsidian → ReceivesAction → used in scrying | 0.25 | |
| obsidian → ReceivesAction → found by archaeologist | 0.22 | |
| obsidian → ReceivesAction → easy to install | 0.16 | |
| obsidian → ReceivesAction → known since prehistoric times | 0.16 |