| 释义 |
spurrite Min.|ˈspɜːraɪt|
[f. the name of Josiah E. Spurr (1870–1950), U.S. geologist + -ite1.]
A monoclinic carbonate and silicate of calcium, (Ca2SiO4)2.CaCO3, which is a product of the contact metamorphism of limestone and usu. occurs as pale grey crystalline masses.
1908F. E. Wright in Amer. Jrnl. Sci. CLXXVI. 551 Spurrite occurs in the hand specimens either in pure, unaltered state, except for minute inclusions of magnetite, or together with yellow garnet, calcite and gehlenite. 1938Mineral. Mag. XXV. 38 Spurrite is..a constituent not only of the silicated zone of the contact but also occurs isolated in calcite in the marbles derived from the chalk. 1968I. Kostov Mineralogy 304 The minerals of the group are contact-metamorphic products in limestones, spurrite being a characteristic high-temperature mineral. |