Queensland Minerals |
A Summary of Major Mineral Resources, Mines and Projects, 2nd Edition |
Comments |
The Lady Loretta mineralisation occurs as a stratiform, massive sulphide lens within carbonate rich silts and shales, tightly folded into a |
basinal structure. Three main ore types are recognised: stratiform ore comprising laminated pyrite-sphalerite- |
galena mineralisation, high grade ore comprising banded, recrystallised sphalerite-galena sulphides, and barite-chert sulphide comprising |
low grade iron sphalerite within recrystallised bands with pyrite. |
Metallurgical testing program indicated the ore responded favourably to conventional flotation separation techniques at a grind size of 35 |
microns. |
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