8
PRELIMINARY CONCLUSIONS
The main objective of this study was to evaluate the criti-
cal minerals in mine wastes of three districts. The presence
of these critical minerals in the waste material could be
of economic interest. The recognition of critical minerals
could be important for enhancing the overall economic
well-being of the United States. Copper Flat mines tail-
ings (Hillsboro district) are elevated in Bi, Co, Cu, Ga, Te,
Zn, and Zr. Black Hawk district mine waste samples are
elevated in Ag, Co, Ba, Cu, Ni, Zn, and TREE, and Kelly
mine, Magdalena district mine waste samples are elevated
in Cu, Zn, and Pb. Mining companies need to determine
if these concentrations could be economic. Determination
of acid generating potential in the area suggests that Black
Hawk mine wastes are non-acid forming. Determination
of acid-generating potential in the area suggests that Black
Hawk District mine wastes are classified as non-acid-form-
ing. High S in some samples from Hillsboro and Magdalena
districts results in a classification of acid forming and can
potentially cause acid mine drainage.
ACKNOWLEDGMENT
This work is part of ongoing research of the economic geol-
ogy of mineral resources in New Mexico at NMBGMR,
Mike Timmons, Director, and State Geologist. This study
was partially funded by the USGS Earth MRI Cooperative
Agreements No. G23AC00373 (mapping of Black Hawk
area) and G22AC00510 (critical minerals in mine wastes).
Thanks to Jacob Newcomer for his contribution to con-
ducting the XRD analysis, and to Sara Moses and Abena
Acheampong-Mensah for their assistance in performing the
paste pH. Thanks to Dr. McLemore’s Economy Geology
group that contributed in collecting samples. Sample col-
lecting by the Magdalena High School science class is
appreciated.
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