syhedriten.
/sʌɪˈhiːdrʌɪt/ Mineralogy.
A mineral of uncertain composition, supposed to be related to stilbite.
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the world > the earth > minerals > types of mineral > silicates > tectosilicate > [noun] > feldspathoid > zeolite > other zeolites
analcime1803
mesotype1803
laumontite1805
heulandite1822
okenite1828
dysclasite1835
brewsterite1843
mordenite1864
syhedrite1865
analcite1868
offretite1891
stellerite1909
yugawaralite1952
wairakite1955
nekoite1956
1865 Shepard in Amer. Jrnl. Sci. 40 110 Syhedrite. I have thus named, from its locality... The mineral occurs in trap at Thore-Ghat, in the Syhedree Mountains, Bombay.
This entry has not yet been fully updated (first published 1919; most recently modified version published online June 2018).
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n.1865