Min. Also sordawal(l)ite. [ad. Sw. sordawalit (Nordenskiöld, 1820), f. Sordawala, -vala, in Finland, its locality.] A vitreous mineral substance found in diabase.
1823. W. Phillips, Min. (ed. 3), 210. Sordawalite … is described as being nearly black.
1850. Ansted, Elem. Geol., Min., etc. 191. Sordawalite, silicate of alumina and magnesia with phosphate of magnesia.
1868. Watts, Dict. Chem., Sordawallite, a mineral resembling pit-coal in appearance, forming three layers in trap near Sordawala in Finland.
1882. Imperial Dict. (Annandale), Sordavalite. [So in later Dicts.]
