GRANULAR BROWN COAL. S77 Use. It is used as fuel. Observations. 1. We find in it, 1. Iron-pyrites: 2. Honeystone: 3. Amber: 4. A substance resembling the Retin-asphal- tum of Hatchett. 2. It is to be observed passing into Bituminous Wood and Moor-Coal; sometimes also into Pitch-Coal. Fifth Subspecies. Granular Brown Coal. Kornige Braunkohle, Karslen. Ktfmigc Braunkohle, Karslen, Tabel. s. 96. Id. Lcnz, b. ii. s. 1062. External Characters. Its colour is blackish-brown on the longitudinal frac ture, and velvet-black on the cross fracture. It occurs in the ligneous external form. The longitudinal fracture is glimmering and silky, and delicate and straight fibrous ; the cross fracture shining, and small and imperfect conchoidnl. The fragments are trapezoidal. It exhibits small granular distinct concretions, on the cross fracture. It is soft It yields a blackish-brown streak. It is light. Gcosrnostic Situation. O Tt occurs at Maremma, in the district of Sienna. Sixth
