BGS mineralogy and petrology collection record

Sample number E58648; E58648/A; E58648/B; MR33650; COLLNOJH1634;
Sample Donor Hawkes,J.R.; Wheatley, C.W.;
Rock name 'Original entry: Granite'
Stratigraphy Not entered
Comments Poorly megacrystic. biotite bearing
Locality details Sub-outcrop in lane 0.2km at 090deg from Treverbyn Farm,
50k map sheet Bodmin (347)

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Map reference SX 0350 5661
Year collected 1976 
Bore name Not applicable
Confidentiality No restrictions

Petrological thin sections

Links to high resolution images

Transition from XPL to PPL light


E58648/A

Cross Polarized, E58648/A

Plane Polarized, E58648/A

Plane Polarized, E58648/A


E58648/B

Cross Polarized, E58648/B

Plane Polarized, E58648/B

Plane Polarized, E58648/B