- a reddish variety of oligoclase feldspar, used as a gem, having a red and bright-yellow play of color.
Origin of sunstone
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for sunstone
Sunstone culture because of the sun worship and the megaliths.The Outline of History: Being a Plain History of Life and Mankind
Herbert George Wells
She set down the glass and rubbed the sunstone on her finger.Little Fuzzy
Henry Beam Piper
The gems known as moonstone and sunstone owe the play of colors which gives them their respective names to similar causes.
Sunstone is the term by which those kinds of Feldspar are known which reflect a spangled yellow light.
The sheen of sunstone is best visible when the stone is held in the sunlight or strong artificial light.
- another name for aventurine (def. 2)
C17: so called because it contains red and gold flecks which reflect the light
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