hornblende

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

noun a green to black mineral of the amphibole group; consists of silicates of calcium and sodium and magnesium and iron

From German Hornblende, from Horn (“horn”) + Blende (see blende).

An examination of the stones which fell at Fort de France showed them to be of a variety of lava called hornblende and andesite. — Complete Story of the San Francisco Horror, Trumbull White
Structurally, therefore, these isles are a continuation of Land's End, but the granite has become less consistent and more friable; it is largely broken into felspar, quartz, and mica, with schorl, chlorite, and hornblende. — The Cornwall Coast, Arthur L. (Arthur Leslie) Salmon

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