sericite Min.
(ˈsɛrɪsaɪt)
[ad. G. sericit (1852), f. L. sēric-um silk: see Seric and -ite1 2 b.]
A fibrous variety of muscovite.
| 1854 Dana Syst. Min. (ed. 4) II. 223 Sericite of K. List, is regarded by him as near Damourite. 1866 Lawrence tr. Cotta's Rocks Classified 23 Sericite, a green mineral, of silky lustre. |
b. attrib. = sericitic.
| 1879 Rutley Study of Rocks 296 Sericite-Schist.—This is a schistose rock closely allied to the porphyroids, and consists of sericite, fragments of quartz [etc.]. 1884 Nature 13 Nov. 35/1 Sericite mica. |
Hence sericitic (sɛrɪˈsɪtɪk) a., containing or having the character of sericite.
| 1814 Nature 13 Nov. 34/1 A slight development of sericitic mica. |