AMPHIBOLES

Noun

amphiboles

plural of amphibole

Source: Wiktionary


AMPHIBOLE

Am"phi*bole, n. Etym: [Gr. amphibole. Haüy so named the genus from the great variety of color and composition assumed by the mineral.] (Min.)

Definition: A common mineral embracing many varieties varying in color and in composition. It occurs in monoclinic crystals; also massive, generally with fibrous or columnar structure. The color varies from white to gray, green, brown, and black. It is a silicate of magnesium and calcium, with usually aluminium and iron. Some common varieties are tremolite, actinolite, asbestus, edenite, hornblende (the last name being also used as a general term for the whole species). Amphibole is a constituent of many crystalline rocks, as syenite, diorite, most varieties of trachyte, etc. See Hornblende.

Source: Webster’s Unabridged Dictionary 1913 Edition



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Word of the Day

11 February 2025

ALEWIFE

(noun) shad-like food fish that runs rivers to spawn; often salted or smoked; sometimes placed in genus Pomolobus


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Coffee Trivia

In the 16th century, Turkish women could divorce their husbands if the man failed to keep his family’s pot filled with coffee.

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