BGS mineralogy and petrology collection record

Sample number E927
Sample Donor De la Beche, H.
Rock name Dolerite (Synonymous With Microgabbro). 'Original entry: Diabase'
Stratigraphy Not entered
Comments Loc. doubtful, rock has affinities to spilite.
Locality details Black Head.
50k map sheet Bodmin (347)

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

Petrological thin sections

Links to high resolution images

Transition from XPL to PPL light


E927

Cross Polarized, E927

Plane Polarized, E927

Plane Polarized, E927