BGS mineralogy and petrology collection record

Sample number E7158
Sample Donor Butler,A.J.
Rock name Granite. 'Original entry: Tourmaline Granite'
Stratigraphy Not entered
Comments Not entered
Locality details Gunnislake Quarry, E. side.
50k map sheet Tavistock (337)

View images in GeoScenic related to 'Tavistock'

View a geological map near 'Tavistock'

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


E7158

Cross Polarized, E7158

Plane Polarized, E7158

Plane Polarized, E7158