'Original entry: Aegirine Granite With Riebeckite; Dark Specimen - Rockallite; Light Specimen - ?'
Stratigraphy
Not entered
Comments
Specimen collected during RN annexation of Rockall 18th Sept 1955; see Bull Gol Surv GB, No. 16
Locality details
Rockall W slope c. 30 ft above seaweed level (seaweed level is approx. mean high water springs, i.e. 63 ft below apex of rock and 12 ft above mean tides