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单词 sunstone
释义

sunstone


sun·stone

S0891400 (sŭn′stōn′)n. See aventurine.

sunstone

(ˈsʌnˌstəʊn) n (Minerals) another name for aventurine2[C17: so called because it contains red and gold flecks which reflect the light]
Thesaurus
Noun1.sunstone - a translucent quartz spangled with bits of mica or other mineralsaventurinequartz - a hard glossy mineral consisting of silicon dioxide in crystal form; present in most rocks (especially sandstone and granite); yellow sand is quartz with iron oxide impuritiesgoldstone - aventurine spangled densely with fine gold-colored particlestransparent gem - a gemstone having the property of transmitting light without serious diffusion

sunstone


sunstone.

1 Crystal mineral thought by some to have been used by the Vikings as an aid to navigation, especially in conditions of low visibility due to clouds or fog when the position of the sun was uncertain. Both Iceland sparIceland spar,
colorless variety of crystallized calcite, characterized by its properties of transparency and double refraction. It is used chiefly in the manufacture of Nicol prisms, which are essential parts of polarizing microscopes and other optical instruments.
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 and cordierite, which have optical properties that cause rays of light to show different properties in different directions, thus permitting an observer to determine the position of the sun, have been suggested as candidates for the sunstone. 2 A reddish or golden form of a plagioclase feldsparfeldspar
or felspar
, an abundant group of rock-forming minerals which constitute 60% of the earth's crust. Chemically the feldspars are silicates of aluminum, containing sodium, potassium, iron, calcium, or barium or combinations of these elements.
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 that is used as a gemstone.

sunstone

[′sən ‚stōn] (mineralogy) An aventurine feldspar containing minute flakes of hematite; usually brilliant and translucent, it emits reddish or golden billowy reflection. Also known as heliolite.

sunstone


  • noun

Synonyms for sunstone

noun a translucent quartz spangled with bits of mica or other minerals

Synonyms

  • aventurine

Related Words

  • quartz
  • goldstone
  • transparent gem
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