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sunstone

American  
[suhn-stohn] / ˈsʌnˌstoʊn /

noun

  1. a reddish variety of oligoclase feldspar, used as a gem, having a red and bright-yellow play of color.


sunstone British  
/ ˈsʌnˌstəʊn /

noun

  1. another name for aventurine

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of sunstone

Middle English word dating back to 1350–1400; see origin at sun, stone

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

But what the country lacks in gemological richness, it makes up in a startling variety of gems mined coast to coast, from Oregon sunstone to Maine tourmaline.

From New York Times Dec. 5, 2022

And Oregon produces different varieties of sunstone and jasper.

From New York Times Dec. 5, 2022

To my surprise, the sunstone is "real" – or rather, as real as a firm theory can make it.

From The Guardian Apr. 9, 2013

The Norse sagas mention a mysterious "sunstone" used for navigation.

From Science Magazine Nov. 2, 2011

A variety of translucent quartz, spangled throughout with scales of yellow mica. ÷ feldspar, a variety of oligoclase with internal firelike reflections due to the presence of minute crystals, probably of hematite; sunstone.

From Webster's Unabridged Dictionary (2nd 100 Pages) by Webster, Noah

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