BGS mineralogy and petrology collection record

Sample number E30853; COLLNOJW267;
Sample Donor Wright,J.E.
Rock name 'Original entry: Hornblende Bearing Chert'
Stratigraphy Not entered
Comments Hornfels. ? Cherty with veinlets of actinolite. From debris of trench excavation. Site is on crest of ridge so specimens are probably close to solid positions.
Locality details Watermain trench, 430 Yds. W. at 14 deg. N. of Drewsteignton Church.
50k map sheet Okehampton (324)

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Map reference SX 734 910
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


E30853

Cross Polarized, E30853

Plane Polarized, E30853

Plane Polarized, E30853