Search

Search U.S. government technical reports digitized or harvested by TRAIL.

Keyword Search

Enter your search term(s):
[advanced search]

4 results returned

Search results

• Fersmite :a rare calcium-columbate mineral from Montana
• A simple chemical method for estimating phosphorus pentoxide content of sedimentary phosphate ores and concentrates
• Hafnium content of domestic and foreign zirconium minerals
• Petrographic study and classification of western phosphate ores