Thesaurus Term/Concept: MAGNESIAN LIMESTONE
| Identifier | 99258 |
|---|---|
| Class | COVERING BUILDING MATERIALS |
| Status | Preferred |
| Index? | Yes |
| Scope Note | Permian limestones which have had their chemical composition naturally altered with the calcium content being replaced by magnesium. Fine grained and varying from yellow/brown to cream in colour, although they weather to a dark grey. |