In the latter areas, ore-related veinlets clearly cut an earlier barren silicification that exploited pathways generated by fracturing of the rocks along perlitic cracks. |
Sample 33 has perlitic texture and is entirely altered to epidote and chlorite. |
Microstructure is composed of fine ferritic and perlitic constituents without defects like non-metallic inclusions, gas and shrinkage porosity. |