Chrysoberyl

Part of speech: noun

Pronunciation: /ˈkɹɪs.ə(ʊ)ˌbɛɹ.ɪl/

Definitions

1. A unique mineral often noted for its striking yellow-green hues, it serves both as a colorful gemstone and as a specific type of beryllium aluminum oxide
2. This mineral, appearing in shades such as yellow-green, is valued in jewelry and classified as a distinct type of beryllium aluminum oxide
3. A rare mineral characterized by its vibrant yellow-green coloration, it is prized in the jewelry industry while also being categorized as a specific form of beryllium aluminum oxide

Etymology: Chrysoberyl is a word that was built to name a stone, and its name simply means "gold beryl." The Ancient Greek "khrusos" meant gold, and "bēryllos" was the name for beryl, a family of gems that includes emerald and aquamarine. Greek speakers borrowed the idea of a gold-coloured beryl to describe this particular stone, which shows a yellowish or golden-green sheen rather than the green of its more famous cousins. The Greek compound passed into Latin as "chrysoberyllus," and from there into English. The stone has the same name in many modern languages, because the gem trade and mineralogy kept the classical term rather than inventing new ones. Its name thus records a single observation about colour, preserved for two thousand years.