BGS mineralogy and petrology collection record

Sample number MR4519
Sample Donor Not entered
Rock name Lamprophyres. 'Original entry: Olvine-Trachyte ("Orthophyre")'
Stratigraphy Lower Permian. Exeter Group.
Comments Olvine-trachyte ("orthophyre"),Exeter Volcanic Rocks,Permian,
Locality details Knowle Hill Qy., Spencecombe, near Crediton,
50k map sheet Exeter (325)

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Map reference SS 789 022
Year collected Not entered 
Bore name Not applicable
Confidentiality No restrictions