Rensselaer Republican, Volume 24, Number 13, Rensselaer, Jasper County, 26 November 1891 — Rare Metals. [ARTICLE]

Rare Metals.

Some rare metals, and possessing special qualities are required for certain work. Thus palladium is used in making some parts of time pieces, and iridium for the points of gold pens. Lithium is the , lightest of metals. Rhodium is extremely hard and brittle and is only fusible at a very high temperature, and iridium is the heaviest substance hitherto discovered. The uninitiated have no idea of the value of these very scarce products, which are most of them far more precious than gold or silver, so far as their market value is concerned. AZAa: t : ■ - -