BGS mineralogy and petrology collection record

Sample number E30835; COLLNOJW244;
Sample Donor Wright,J.E.
Rock name Slate. 'Original entry: Chiastolite Slate'
Stratigraphy Not entered
Comments Blue grey culm, hornfelsed with chiastolite; from aureole of Dartmoor Granite
Locality details 570 yds E19 deg N from Smallbridge
50k map sheet Exeter (325)

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Map reference SS 789 886
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


E30835

Cross Polarized, E30835

Plane Polarized, E30835

Plane Polarized, E30835