BGS mineralogy and petrology collection record

Sample number S20749
Sample Donor Anderson, E.M.
Rock name 'Original entry: Olivine-Basalt'
Stratigraphy Not entered
Comments Tertiary, columnar lava, Plateau type; Memoir, p. 146
Locality details 1200 yds E by N from Shiaba
50k map sheet Iona (43)

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Map reference NM 4527 1943
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


S20749

Cross Polarized, S20749

Plane Polarized, S20749

Plane Polarized, S20749