Ductility

That specific property of matter by virtue of which it can be drawn out into thread or fine wire. The order of ductility for the metals is, according to Daniell, gold, silver, platinum, iron, copper, palladium, aluminium, zinc, tin, lead. Wollaston obtained a platinum wire 0.00003 of an inch in diameter, by first coating the wire with a comparatively thick layer of silver; after this was drawn as fine as po ible the silver was di olved off, leaving the platinum. Cast iron has no ductility, while wrought iron and some varieties of steel po e the property in a high degree.