| 释义 |
scawtite Min.|ˈskɔːtaɪt|
[f. the name Scawt (see quot. 1930) + -ite1.]
A hydrated carbonate and silicate of calcium which occurs as minute, colourless, monoclinic crystals.
1929Nature 7 Dec. 896/1 C. E. Tilley: On scawtite... This new monoclinic mineral, with composition 6CaO.4SiO2.3CO2, occurs in the contact zone between the chalk and the dolerite. 1930C. E. Tilley in Mineral. Mag. XXII. 224 It is proposed to designate this new mineral scawtite, from the original locality, Scawt Hill, Co. Antrim. 1957Amer. Mineralogist XLII. 387 A zone about ten inches thick between the larnite zone and the limestone consists essentially of scawtite. The scawtite rock is greyish-white, dense and flinty. 1973Acta Crystallographica B. XXIX. 73 Scawtite contains 2 units of Ca7(Si6O18)(CO3).2H2O in a monoclinic cell. |