Random triples
| Subject | Object |
|---|---|
| gptkb:Cuprita | brittle |
| gptkb:Sodalite | Brittle |
| gptkb:tetrahedrite | brittle |
| gptkb:Barite | brittle |
| gptkb:Petalite | brittle |
| gptkb:orthoclase | brittle |
| gptkb:pumpellyite-(Al) | brittle |
| gptkb:Smoky_quartz | Brittle |
| gptkb:bronzite | brittle |
| gptkb:lizardite | flexible |
| gptkb:triphylite | brittle |
| gptkb:Natrolite | Brittle |
| gptkb:Scolecite | Brittle |
| gptkb:Danburite | brittle |
| gptkb:covellite | brittle |
| gptkb:Thomsonite | Brittle |
| gptkb:mineral_zircon | brittle |
| gptkb:cummingtonite | brittle |
| gptkb:Adularia | brittle |
| gptkb:pyrite | brittle |