As I said, it can bling under very rare circumstances, or after acid wash.
Otherwise it's mostly like this, amalgamated with black sand, mercury and other impurities:
Small specs can bling better, but they are specs - and silvery specs (not silver which is usually black-ish, but silvery) can be mirror-like and 10x in terms of bling-iness. It's the stuff you can see on the heaviest sands after a heavy rain, when it has washed everything except them - and they sparkle like crazy. You can see them on roads, pavements, even on soil which has been eroded. The rain streams move the lighter stuff and the metallic deposits of silvery-sparkling-metals remain.