BGS mineralogy and petrology collection record

Sample number E26773; COLLNODP8;
Sample Donor Ponsford,D.R.A.
Rock name 'Original entry: Chert'
Stratigraphy Not entered
Comments Chert occuring with Barytocelestine in "Head". Is it silicified limestone ? Compare DP.1
Locality details Head' stream section, 650yds.NE. (50d.)of Millbrook Farm, 1ml. N.of Shepton Mallet
50k map sheet Wells (280)

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Map reference ST 632 459
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


E26773

Cross Polarized, E26773

Plane Polarized, E26773

Plane Polarized, E26773