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单词 larnite
释义

larniten.

/ˈlɑːnʌɪt/
Etymology: < Larne, the name of a town in Co. Antrim, Northern Ireland + -ite suffix1.
Mineralogy.
A mineral consisting of a metastable monoclinic phase of dicalcium silicate, Ca2SiO4.
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the world > the earth > minerals > types of mineral > silicates > nesosilicates > [noun] > others
ottrelite1843
orientite1921
kasolite1922
larnite1929
stillwellite1955
vuagnatite1976
1929 C. E. Tilley in Mineral. Mag. 22 79 Next in importance to spurrite comes a mineral consisting of calcium orthosilicate. As this is the first recorded natural occurrence of this compound it is proposed to designate it as larnite, from Larne, in the vicinity of which these contact minerals occur.
1950 Mineral Mag. XXIX. 182 Both the nagelschmidtite and larnite phases have been seen in slags.
1957 Amer. Mineralogist 42 384 The larnite zone is very prominent, forming a band about thirty inches thick, dark grey to almost black in color, hard, flinty, and very tough. The dark color is..due to..the presence of a small amount of very fine-grained magnetite. Pure larnite is presumably white.
1966 Amer. Min. LI. 1766 The α′ (bredigite), β (larnite) and γ (unnamed) forms of dicalcium silicate (Ca2SiO4) occur together in the contact zone around a syenite-monozonite intrusion in Marble Canyon.
This entry has not yet been fully updated (first published 1976; most recently modified version published online December 2019).
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n.1929
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