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Webster 1913 Edition

Prehnite

Prehn′ite

,
Noun.
[So called from the German Colonel
Prehn
, who first found it.]
(Min.)
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.

Webster 1828 Edition

Prehnite

PREHN'ITE

,
Noun.
A mineral of the silicious kind, of an apple green or greenish gray color. It has been called shorl, emerald, chrysoprase, felspath, chrysolite, and zeolite. It has some resemblance to zeolite, but differs from it in several particulars, and is therefore considered to be a particular species.
Prehnite is near to stilbite, and is classed by the French with the family of zeolites.
It is massive or crystallized, but the form of its crystals cannot be determined in consequence of their aggregation.

Definition 2024

prehnite

prehnite

English

Prehnite

Noun

prehnite ‎(countable and uncountable, plural prehnites)

  1. (mineralogy) A mineral, a basic calcium, aluminium and iron aluminosilicate, which occurs in stalagtitic aggregates or curved crystals, Ca2Al2Si3O10(OH)2.

Translations

  1. ↑ Richard V. Gaines, H. Catherine W. Skinner, Eugene E. Foord, Brian Mason, and Abraham Rosenzweig: Dana's new mineralogy, John Wiley & Sons, 1997

Anagrams

Etymology

Named in 1789 after Hendrik Von Prehn (1733-1785),[1] Dutch colonial governor. This was the first mineral to be named after a person.

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