BGS Rock Classification Scheme
Lamproite, diopside-madupitic - A type of lamproite. The term madupitic indicates that the rock contains poikilitic groundmass phlogopite, as opposed to a phlogopite lamproite in which the phlogopite occurs as phenocrysts. British Geological Survey Research Report RR/99/06, section 6.5. Synonym: madupite.
| Code | LMPDM |
|---|---|
| Description | Lamproite, diopside-madupitic - A type of lamproite. The term madupitic indicates that the rock contains poikilitic groundmass phlogopite, as opposed to a phlogopite lamproite in which the phlogopite occurs as phenocrysts. British Geological Survey Research Report RR/99/06, section 6.5. Synonym: madupite. |
| Qualifiers | diopside madupitic |
| Definition | Exotic crystalline rock; 5-20% diop, poikilitic g'ndmss Ti-phlog/Ti-tetraferriphlog, 5-90vol%, phenocrystic Fe-leuc/richter/forsteritic olivine/sanid, no primary plag/mel/monticell/kals/neph/Na-feld/sodal/nosean/hauyne/melan/schorlom/kimzeyite. Madupite |
| Linked data | http://data.bgs.ac.uk/id/EarthMaterialClass/RockName/LMPDM |
CAVEAT
"Thumbnail" definitions attached to some of the table entries are an interim attempt to provide simple short descriptions of the "unqualified" rock types presented within the BGS Rock Classification Scheme. Every effort has been made to ensure accuracy and consistency but minor contradictions or omissions might be present. The BGS welcomes any feedback pointing out such minor imperfections and/or providing constructive comment and suggestions for improvement of the definitions. In the first instance such feedback should be directed to Dr Tim McCormick.