noun
- a yellow, brown, or green mineral consisting of calcium titanium silicate, used as a gemstone
Usage: mineralogy
Examples
- The geologist identified the yellow crystal as sphene.
- Sphene is prized by collectors for its high brilliance and fire.
- The jewelry designer set a green sphene in the pendant.
- Sphene crystals often display strong pleochroism.
- The mineral specimen contained both sphene and quartz.
- Sphene is also known by its scientific name, titanite.