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Webster 1913 Edition

Adularia

‖

Adˊu-la′ri-a

,
Noun.
[From
Adula
, a mountain peak in Switzerland, where fine specimens are found.]
(Min.)
A transparent or translucent variety of common feldspar, or orthoclase, which often shows pearly opalescent reflections; – called by lapidaries moonstone.

Webster 1828 Edition

Adularia

ADULA'RIA

,
Noun.
[From Adula, the summit of a Swiss mountain.]
A mineral deemed the most perfect variety of felspar; its color white, or with a tinge of green, yellow, or red.

Definition 2024

adularia

adularia

See also: adularía and adulária

English

Noun

adularia ‎(plural adularias)

  1. A variety of orthoclase feldspar found as colorless to white prismatic crystals in cavities in metamorphic rocks. Some specimens reflect a bluish sheen along crystal faces. This phenomenon is called adularescence, and adularia with this property is called moonstone. (See sanidine).

See also

Translations

Italian

Etymology

From Adular, a Swiss locality.

Noun

adularia f ‎(plural adularie)

  1. (mineralogy) adularia

Portuguese

Verb

adularia

  1. First-person singular (eu) conditional indicative of adular
  2. Third-person singular (ele, ela, also used with tu and você?) conditional indicative of adular

Spanish

Noun

adularia f ‎(plural adularias)

  1. adularia (variety of orthoclase feldspar)

Etymology

Named for the type locality at Adular, Switzerland.

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