BGS mineralogy and petrology collection record

Sample number E30874; MR27944; COLLNOD69; COLLNOJW294;
Sample Donor Chaperlin,K.; Hawkes,J.R.; Wright,J.E.;
Rock name 'Original entry: Quartz Biotite Muscovite Hornfels'
Stratigraphy Not entered
Comments Contact of fine biotite granite and hornfelsed sandstone. Granite occurs as vein 4" thick. Contact follows steep dipping joints in hornfels.
Locality details S side of lane on S side of River Teign, 1500 Yds. S. at 40 deg. W. of Holy Trinity Church, Drewsteignton
50k map sheet Okehampton (324)

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Map reference SX 727 900
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


E30874

Cross Polarized, E30874

Plane Polarized, E30874

Plane Polarized, E30874