staurolite Min.
(ˈstɔːrəʊlaɪt)
[a. F. staurolite (Delamétherie 1792): see stauro- and -lite.]
† 1. = harmotome. Obs.
| 1796 Kirwan Elem. Min. (ed. 2) I. 282 Staurolite, or cross stone of St. Andreasberg in the Hartz. 1837 Dana Min. 277 Harmotome, Vulcanus gemellus... Staurolite. |
2. Silicate of aluminium and iron, of yellowish brown to dark brown colour, found frequently in cruciform twins.
| 1815 Aikin Min. (ed. 2) 189. 1888 Rutley Rock-Forming Min. 163 Staurolite occurs chiefly in the crystalline schists. |
| attrib. and Comb. 1879 Rutley Stud. Rocks xiv. 292 Staurolite slate is a dark micaceous slate containing crystals of staurolite. 1888 ― Rock-forming Min. 201 The staurolite-bearing schists of Brittany. |
Hence
stauroˈlitic a.| 1880 Dana Man. Geol. (ed. 3) 237 Staurolitic mica schist. |