Ironi-Flint.*'^ 135 fragments indeterminately angular, not partjcu- larl Y fliarp edged. It occurs almoft always in fmall grained diftin£t c °ncretions, which approach fometimes to the fine, j, , • • C* O ' • "J T *7' ncl more rarely to the coarfe’grained. ^ H ^ is opaque and flightly tranflucent on the edges. Pretty hard, yielding to the file. Somewhat difficultly frangible. particularly heavy, approaching to heavy. • i- . * ) . , iisiJ J * t Geognostic Situation. r ' - *iii *r fj* ' ! " O r\ r .V "jiM . \ Y O' ^ . " occurs in iron-ftone veins, and appears to be an 1I1 tirt\ate mixture of quartz and iron ochre, -J ^ - ' ' 1 Geographic Situation. . ^ is found at Eibenftock and. Altenberg in Saxony, Karft^nfays, alfo at Briftol in England. Obfervation. h renders the iron ore. along with which it occurs, t TWENTY