NGT44-3-12
1964
Note on boron-carrying minerals.
44
3
441-442

During spectrochemical studies on various mineral associations it has been found that boron is selectively concentrated as a trace element in certain minerals. The concentrations are of the order of several hundred ppm or higher, while the associated minerals appear to be boron-free, i.e. their contents are in any case far below 100 ppm.

0029-196x
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