BGS mineralogy and petrology collection record

Sample number E1972
Sample Donor Not entered
Rock name Not entered
Stratigraphy Not entered
Comments olivine dolerite [ Augitic lamprophyre ]: largely phenocrysts of augite, chlorite as if made from augite. Groundmass tangle of lath like plagioclase, chlorite, ilmenite, sphene. A little actinolite. - see Lamplugh p304
Locality details large quarry at Poortown: igneous mass in Skiddaw
50k map sheet Isle of Man (46)

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Map reference SC 26853 83178
Year collected Not entered 
Bore name Not applicable
Confidentiality No restrictions