sphenen.
/sfiːn/, U.S. /sfin/ Mineralogy.
= titanite n. 2.
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the world > the earth > minerals > types of mineral > silicates > nesosilicates > [noun] > subsaturate group > sphene or titanite
spinthere1805
sphene1815
ligurite1816
titanite1816
semeline1836
greenovite1840
grothite1867
titanomorphite1880
titan1882
1815 A. Aikin Man. Mineral. (ed. 2) 137 Sphen. Rutilite... Colour redish, yellowish, greyish, and blackish brown.
1849 J. D. Dana U.S. Exploring Exped.: Geol. (1850) vi. 347 Some minute crystals of sphene.
1879 F. Rutley Study of Rocks x. 140 Frequently the crystals of sphene appear cloudy or imperfectly translucent.
This entry has not yet been fully updated (first published 1914; most recently modified version published online March 2022).
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n.1815- to fret in
- to fret its way
- to fret one's gizzard
- to fret oneself
- to fret out
- to fribble away
- to fribble out
- to friction away
- to friend
- to frighten a person blue
- to frighten out of one's senses
- to frighten seven bells out of a person
- to frighten to death
- to frighten — bells out of
- to frisk away
- to frisk it
- to frist
- to frist it
- to frivol away
- to frolic it
- to front about
- to frost a person's ass etc
- to frost a person's balls
- to froth over
- to frump off