BGS mineralogy and petrology collection record

Sample number E957
Sample Donor Rutley,F.
Rock name Syenite. 'Original entry: Yogoitic Syenite. Trachyte (Micaceous)'
Stratigraphy Not entered
Comments Permian Lava, Holocrystalline groundmass of ?sanidine Porphyritic orthoclase & olivine
Locality details Large Qry. nr Copplestone, (Knowle Hill Qry), NW of Spencecombe.
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

Petrological thin sections

Links to high resolution images

Transition from XPL to PPL light


E957

Cross Polarized, E957

Plane Polarized, E957

Plane Polarized, E957