BGS mineralogy and petrology collection record

Sample number UG1890; LABNO5622; RC727/8;
Sample Donor Not entered
Rock name 'Original entry: Opal (Fluorescent)'
Stratigraphy Not entered
Comments Creamy-white and brown banded opal; fluoresces light green.
Locality details Death Valley, California
50k map sheet Not entered
Map reference Not entered
Year collected Not entered 
Bore name Not applicable
Confidentiality No restrictions