unmineralized en · ADJ
Etymology
From un- + mineralized.
Meanings
-
(not-comparable) Not mineralized
Formation of alteration minerals in the host rock during deformation within the shear zone is indicated by the parallel foliation within the secondary micaceous minerals and the unmineralized host schist.
1983, Warren C. Day, Richard M. Tosdal, E.L. Acosta, J.C. Aruspon, L. Carvajal, E. Cedeño, Glenda Lowry, L.F. Martinez, J.A. Noriega, Fernanco J. Niñez, J. Rojas, F. Prieto, “Geology of the Lo Indreíble Mining District and U-Pb Age of the Early Proterozoic Yuruari Formation of the Pastora Supergroup, Guayana Shield, Venezuela”, in U.S. Geological Survey Bulletin, numbers 2122-2127, page E-12: