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PREHNITE
Etymology
Named in 1789 after Hendrik Von Prehn (1733-1785), Dutch colonial governor. This was the first mineral to be named after a person.
Noun
prehnite (countable and uncountable, plural prehnites)
(mineral) A mineral, a basic calcium, aluminium and iron aluminosilicate, which occurs in stalactitic aggregates or curved crystals, Ca2Al2Si3O10(OH)2.
Anagrams
• nephrite, repineth, ripeneth, trephine
Source: Wiktionary
Prehn"ite, n. Etym: [So called from the German Colonel Prehn, who first found it.] (Min.)
Definition: A pale green mineral occurring in crystalline aggregates having a botryoidal or mammillary structure, and rarely in distinct crystals. It is a hydrous silicate of alumina and lime.
Source: Webster’s Unabridged Dictionary 1913 Edition
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27 June 2025
SQUARE
(adjective) having four equal sides and four right angles or forming a right angle; “a square peg in a round hole”; “a square corner”
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