Rhenium

Rhenium (element #75, symbol Re) is a rare, silvery-white metallic element.  Rhenium is found as a trace element in platinum ores and in the mineral columbite.  It is very dense and has a melting temperature of 3186 degrees C (5767 degrees F).  Rhenium does not form minerals of its own, but does occur as a … Continue reading Rhenium