OsmIridium Crystals

OsmIridium crystals - one troy ounce vial - .997 platinum group metals   Osmiridium is an alloy of osmium and iridium found in alluvial deposits scattered sparsely around the world and which often contains smaller amounts of other elements mostly from the platinum group metals (PGMs). This material occurs naturally as small, very dense, silvery metallic pieces with a hexagonal crystalline structure. Osmium is the rarest stable element in the earth's crust and is also the most dense. Its estimated average concentration in the earth's crust is 0.05 parts per billion. Osmium has unique properties that have applications in the medical and electronics industries. Iridium is also exceedingly rare with as estimated concentration in the earth's crust of 0.001 parts per million. Iridium is the most corrosion resistant metal, is the second most dense and has the second highest modulus of elasticity as well as a very high melting point. Iridium's unique properties have application in the electro