Shown here are the varying colors of quartz-carbonate (silicon dioxide + carbon + oxygen), stibnite (antimony sulfide), red kermesite (antimony oxide with sulfur), and yellow cervantite (antimony oxide with less antimony and sulfur than kermesite).
This two-foot wide vein of high grade ore is on Pringle Bench and outcrops to surface where it contributed metal ions to the soils which in turn were detected by our geochemical soil sampling and eventually disclosed itself to the blade of our Caterpillar bulldozer. $$$$$ in the making.
http://www.silverado.com/an-artists-scape-a-miners-dream/
$$$ Ka-Ching Ka-Ching $$$