Zircons

Part of speech: noun

Definitions

1. Minerals belonging to the nesosilicate group, characterized by their zirconium silicate composition and often found in igneous rocks
2. Gemstones that are typically transparent to translucent and used in jewelry, known for their brilliance and durability
3. Valuable materials used in various applications, including as abrasives and in ceramics, recognized for their high refractive index and hardness

Etymology: Zircon comes from a Persian word for a golden-coloured gem. The Middle Persian "zargōn" (roughly "gold-coloured") passed into Arabic as "zarqūn", and from there the name reached European mineralogists, who adopted it in German as "Zirkon" in the 1780s. The stone itself is far older than its name: zircon crystals are among the oldest minerals known on Earth, and some grains found in Australia date back more than four billion years. Zircons is simply the plural of zircon, used when referring to several of the crystals. The English word and its German source are doublets of "jargoon", a different English form of the same Arabic-Persian root, which entered the language earlier and was used for pale or colourless varieties of the stone.