BGS Rock Classification Scheme
Camptonite - A type of lamprophyre. In the Rock Classification Scheme, it is a lamprophyre in which plagioclase is the dominant feldspar, feldspar dominates over feldspathoids, and the predominant mafic minerals are amphibole, Ti-rich augite, olivine, and biotite. British Geological Survey Research Report RR/99/06, section 6.7 and figs. 31, 32.
| Code | CAMPTN |
|---|---|
| Description | Camptonite - A type of lamprophyre. In the Rock Classification Scheme, it is a lamprophyre in which plagioclase is the dominant feldspar, feldspar dominates over feldspathoids, and the predominant mafic minerals are amphibole, Ti-rich augite, olivine, and biotite. British Geological Survey Research Report RR/99/06, section 6.7 and figs. 31, 32. |
| Qualifiers | No qualifiers currently exist. |
| Definition | Exotic crystalline intrusive/extrusive rock; matrix plag > orthoclase, feldspar >feldspathoid, predominant mafic minerals amphibole (barkevikite, kaersutite)+Ti-rich augite+olivine+biotite; diopsidic augite, amphibole, melilite rare/absent; a lamprophyre |
| Linked data | http://data.bgs.ac.uk/id/EarthMaterialClass/RockName/CAMPTN |
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.