by Richard H. Jahns
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Geology of southern California
Late pleistocene and recent deposits in ...
Gem- and lithium-bearing pegmatites of t...
Geologic features of the Connecticut Val...
Geology of the San Dieguito pyrophyllite...
Mica deposits of the Petaca district
The Lovozero alkali massif
Rare-earth element- and yttrium-bearing ...
Geology of Canadian lithium deposits
Maine pegmatite mines and prospects and ...
Pegmatitele din Carpații Meridionali