noun / adjective
turquoise
TUR-kwoyz/ˈtɜːrkwɔɪz/
A blue-green gemstone mineral.
The rough turquoise and polished stone share the same blue-green color.

Etymology
The gemstone was called 'Turkish stone' because it reached Europe from Turkestan or through Ottoman lands. Its distinctive greenish-blue appearance then supplied the color name.
In context
look at the way he handles the pastel with these shades of blue going from turquoise to teal and then the deep blue
More examples
- The jeweler polishes the turquoise before setting it in a pendant.
- Dark veins run through this piece of turquoise.
- She chooses a turquoise scarf to match the gemstone.
Forms
turquoise · turquoises