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单词 helvin
释义

helvinhelvinen.

/ˈhɛlvɪn/
Etymology: modern (Werner, 1817) < Latin helvus light bay + -in suffix1.
Mineralogy.
A honey-yellow or greenish silicate of glucinum and manganese, occurring in regular tetrahedral crystals.
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the world > the earth > minerals > types of mineral > silicates > miscellaneous silicates > [noun] > of glucinum and manganese
helvin1818
helvite1868
trimerite1896
1818 Ann. Philos. 12 311 Helvin..was discovered in..Saxony.
1849 J. Nicol Man. Mineral. 234 Helvine occurs at Schwarzenberg..in beds in gneiss.
1865–72 H. Watts Dict. Chem. III. 141 Helvin affords the only known example of a native compound of a silicate with a sulphide.
This entry has not yet been fully updated (first published 1898; most recently modified version published online June 2018).
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n.1818
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