IRIDOSMINE

osmiridium, iridosmine

(noun) a hard and corrosion resistant mineral that is a natural alloy of osmium and iridium (usually containing small amounts of rhodium and platinum); used in needles and pen nibs etc.

Source: WordNet® 3.1

Etymology

Noun

iridosmine (countable and uncountable, plural iridosmines)

A native compound of iridium and osmium.

Synonyms

• iridosmium

Source: Wiktionary

Ir`i*dos"mine, Ir`i*dos"mi*um, n. Etym: [Iridium + osmium.] (Min.)

Definition: The native compound of iridium and osmium. It is found in flattened metallic grains of extreme hardness, and is often used for pointing gold pens.

Source: Webster’s Unabridged Dictionary 1913 Edition

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