BGS mineralogy and petrology collection record

Sample number MR3493
Sample Donor Not entered
Rock name 'Original entry: Dolerite'
Stratigraphy Not entered
Comments dolerite, ,Collected by H Bauerman:
Locality details Concord Mine, Portage Lake, Michigan,surface exposure,glacial environment specimens,USA
50k map sheet Not entered
Map reference 42:10,85:33
Year collected Not entered 
Bore name Not applicable
Confidentiality No restrictions