BGS mineralogy and petrology collection record

Sample number E21428; E21428/A; E21428/B; COLLNO471;
Sample Donor Buchan,S.
Rock name 'Original entry: Calcite Mudstone Pellet Structure With Gypsum'
Stratigraphy Not entered
Comments All the spec. are from the Porbeck
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


E21428

Cross Polarized, E21428

Plane Polarized, E21428

Plane Polarized, E21428


E21428/A

Cross Polarized, E21428/A

Plane Polarized, E21428/A

Plane Polarized, E21428/A


E21428/B

Cross Polarized, E21428/B

Plane Polarized, E21428/B

Plane Polarized, E21428/B