BGS mineralogy and petrology collection record

Sample number E49945; E49945/A; E49945/B; COLLNOCM5;
Sample Donor Berry,F.G.
Rock name Not entered
Stratigraphy Not entered
Comments Erratic silicious (? chert replacing algal lst.) with calcareous inclusions.
Locality details 1 Km SSE of Buckhurst Hill
50k map sheet Romford (257)

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Map reference TQ 422 933
Year collected
Bore name Not applicable
Confidentiality No restrictions

Petrological thin sections

Links to high resolution images

Transition from XPL to PPL light


E49945/A

Cross Polarized, E49945/A

Plane Polarized, E49945/A

Plane Polarized, E49945/A


E49945/B

Cross Polarized, E49945/B

Plane Polarized, E49945/B

Plane Polarized, E49945/B