BGS mineralogy and petrology collection record

Sample number E1803
Sample Donor Not entered
Rock name Not entered
Stratigraphy Not entered
Comments porphyritic basalt [ Porphyritic diabase ]: porphyritic with large idiomorphic plagioclases in groundmass of small needlelike feldspars embedded in chlorite, calcite and abundant iron ores. Chlorite replacements after olivine or hypersthene. - see La
Locality details 25 yds NW of the spring Scarlett:
50k map sheet Isle of Man (57)

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Map reference SC 25452 66287
Year collected Not entered 
Bore name Not applicable
Confidentiality No restrictions