Cerium Mischmetal

“Cerium is a soft, ductile and silvery-white metal that tarnishes when exposed to air, and it is soft enough to be cut with a knife.
It is the most common of the lanthanides, followed by neodymium, lanthanum, and praseodymium.
Today, cerium and its compounds have a variety of uses: for example, cerium(IV) oxide is used to polish glass and is an important part of catalytic converters. Cerium metal is used in ferrocerium lighters for its pyrophoric properties.”

. Molecular Weight: N/A
. Density: N/A
. Melting point: N/A
. Appearance: Gray ingot
. Stability: Easy oxidized in the air.
. Ductibility: Good