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File:Precambrian Granite St Francis Mountains Missouri.jpg
来自维基百科，自由的百科全书
Found in articles
File:Precambrian Granite St Francis Mountains Missouri.jpg
Description
Precambrian
Granite
St
Francis
Mountains
Missouri
.
jpg
Precambrian
granite
from
St
. Francois
Mountains
,
Missouri
, U.S.A., showing potassium
