Iceland spar and optical fluorite /
Mode of access: Internet.
Main Authors: | , |
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Format: | Text |
Language: | English |
Published: |
Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines
1941
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Subjects: | |
Online Access: | http://hdl.handle.net/2027/mdp.39015074127484 http://hdl.handle.net/2027/mdp.39015095085927 |
Summary: | Mode of access: Internet. |
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