The Vickers Hardness Test is a test used to measure the hardness of metals invented in 1921 by Robert Smith and George Sandland of Vickers, Ltd. The Vickers Test employs a pyramid-shaped industrial diamond which, when born down on a metal, will leave an imprint of varying depth depending on the hardness and resilience of the metal. It is then used to determine a particular metal's relative hardness.
See Also: Moh's Scale of Hardness, Platinum, Gold