"On Yahoo, Coldfoot suggests that Kinross Gold pretty much kicked "this stuff"(antimony) to the side of the road because of arsenic content, environmental issues and the lack of a justifiable investment opportunity. Am I wrong to construe from his comments that this stuff is everywhere in abundance and really not of the value being place on it by Silverado?"

Silverado's antimony is very pure. Arsenic content is very low. Just go back to the NI-43-101 report and look at the charts of content of antimony and the associated other elements at Workman's Bench and Pringle Bench and you will see that in ~90% of all samples, arsenic is far below the cut-off.

Over the last few years, this has been addressed in this forum quite thoroughly.