Random triples
| Subject | Object |
|---|---|
| gptkb:Goethite | Brittle |
| gptkb:wollastonite | brittle |
| gptkb:tephroite | brittle |
| gptkb:mineral_zircon | brittle |
| gptkb:Stilbite | brittle |
| gptkb:Nephrite | Tough |
| gptkb:Grossular | brittle |
| gptkb:Rose_Quartz | brittle |
| gptkb:Spessartine | Brittle |
| gptkb:jadeite | tough |
| gptkb:wurtzite | brittle |
| gptkb:Berzelianite | sectile |
| gptkb:alunite | brittle |
| gptkb:stilbite-Na | brittle |
| gptkb:Hessonite | brittle |
| gptkb:cohenite | brittle |
| gptkb:richterite | brittle |
| gptkb:Baryte | brittle |
| gptkb:Cinnabar | Brittle |
| gptkb:chlorapatite | brittle |