Girasole is a comune (municipality) in the Province of Ogliastra in the Italian region Sardinia, located about 90 km northeast of Cagliari and about 2 km northeast of Tortolì. As of 31 December 2004, it had a population of 1,020 and an area of 13.0 km2.All demographics and other statistics: Italian statistical institute Istat.

See Heliotrope.

A variety of opal which is usually milk white, bluish white, or sky blue; but in a bright light it reflects a reddish color.