BGS mineralogy and petrology collection record

Sample number UG4466; LABNO5398; RC879/1;
Sample Donor Not entered
Rock name 'Original entry: Marcaisite (?)'
Stratigraphy Not entered
Comments Fragment of black marcaisite?, a radioactive metamict mineral found by M.Marcais in potassic pegmatite. Seems to have an octahedral structure but not studied. Associated with a pinkish brown mineral probably zircon or malacon. ?microlite?
Locality details Sahavanitroy, 30km south of Autsirabe
50k map sheet Not entered
Map reference Not entered
Year collected Not entered 
Bore name Not applicable
Confidentiality No restrictions