BGS mineralogy and petrology collection record

Sample number E21398; E21398/A; E21398/B; COLLNO195;
Sample Donor Buchan,S.
Rock name 'Original entry: Lustre-Mottled Calcareous Grit'
Stratigraphy Not entered
Comments 195' All the spec. are from the Purbeck
Locality details The Gypsum Mines Ltd Mountfield Robertsbridge No4 BH NW. of French Farm [later known as Crowhurst Farm]
50k map sheet Hastings (320)

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Map reference TQ 7284 1906
Year collected Not entered 
Bore name Gypsum Mines 4
Confidentiality No restrictions

Petrological thin sections

Links to high resolution images

Transition from XPL to PPL light


E21398

Cross Polarized, E21398

Plane Polarized, E21398

Plane Polarized, E21398


E21398/A

Cross Polarized, E21398/A

Plane Polarized, E21398/A

Plane Polarized, E21398/A


E21398/B

Cross Polarized, E21398/B

Plane Polarized, E21398/B

Plane Polarized, E21398/B