Hydrothermal streaming of iron in a magmatic syenite breccia phase cemented by specularite at the Iron Chief working. The yellow on the cut face on the right is a positive stain for potassium feldspar using cobaltinitrite.
Hydrothermal streaming of iron in a magmatic syenite breccia phase cemented by specularite at the Iron Chief working. The yellow on the cut face on the right is a positive stain for potassium feldspar using cobaltinitrite.