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sphene

Saltos de línea: sphene
Pronunciación: /sfiːn
 
/

Definición de sphene en inglés:

sustantivo

[mass noun]
A greenish-yellow or brown mineral consisting of a silicate of calcium and titanium, occurring in granitic and metamorphic rocks in wedge-shaped crystals.
Example sentences
  • The main constituent phases of these rocks are plagioclase, hornblende, pyroxene, quartz and K-feldspar, and accessory phases include magnetite, sphene, zircon and apatite.
  • Titanium resides principally in heavy minerals: ilmenite, rutile, anatase and sphene, whereas Zr is located predominantly in zircon.
  • How about sphene versus titanite, or celestine versus celestite?

Origen

early 19th century: from French sphène, from Greek sphēn 'wedge'.

Definición de sphene en:

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Palabra del día orthoepy
Pronunciación: ˈɔːθəʊɛpi
noun
the correct or accepted pronunciation of words