girasol

[jir-uh-sawl, -sol] /ˈdʒɪr əˌsɔl, -ˌsɒl/
noun
1.
an opal that reflects light in a bright luminous glow.
2.
adjective
3.
(of a stone) translucent and bluish-white with reddish reflections under strong light; opalescent.
Also, girasole
[jir-uh-sohl] /ˈdʒɪr əˌsoʊl/ (Show IPA),
girosol.
Origin
1580-90; < Italian, equivalent to gira(re) to turn (see girandole) + sole the sun; cf. parasol
British Dictionary definitions for girasol

girasol

/ˈdʒɪrəˌsɒl; -ˌsəʊl/
noun
1.
a type of opal that has a red or pink glow in bright light; fire opal
Word Origin
C16: from Italian, from girare to revolve (see gyrate) + sole the sun, from Latin sōl