Thesaurus Term/Concept: PORPHYRY
| Identifier | 102691 |
|---|---|
| Class | COVERING BUILDING MATERIALS |
| Status | Preferred |
| Index? | Yes |
| Scope Note | Traditional term for any fine to medium grained igneous rock, containing large crystal fragments. |
| Identifier | 102691 |
|---|---|
| Class | COVERING BUILDING MATERIALS |
| Status | Preferred |
| Index? | Yes |
| Scope Note | Traditional term for any fine to medium grained igneous rock, containing large crystal fragments. |