Page:Narrative of a survey of the intertropical and western coasts of Australia, Volume 2.djvu/637

 612 APPENDIX. [C. Mm, vua BAT.--Orate, composed of gre! and some- what bluish felspar, dark brown mica, and a little quartz; �containing minute disseminated specks of mo/y6dea and indistinct crystals of pale rel 9araet. Rno CLzrrs, south-west of Arehem Bey ;--on the line of the first chain of islands mentioned by Captain Fiinders. (See the Map, p. 600, fig. 3.)---Friable conglomerate, of a full brick-red colour, consisting of minute grains of quart with a large proportion of ochrenun ma_er. MLLISON'S ISLAND. (Map, p. 600, fig. 4.)--The cliffs of this island are composed of a fissile primitive rock, on which �sand-stone reposes in regular beds. The specimen of the former resembles gaeiu, or m/ca date, near the contact with granite: the saad-stoue is thickslaty, quartze, of a reddish hue, with mica disseminated on the surfaces of the joint8; and one fm:e of the specimen is incrusted with quartz crys- tals, thinly coated with botryoidal hematite. Light gre! uartzoe mad-stone of a fine grain, with a thin coating of brown hematite, was also found in this island :--And a brecc/a, consisting of angular fragments of sandstone, ce* mented by thin, vein-like, coatings of dark brown henre- rite, was found there, in loose blocks at the bottom of per- pendicular cliffs.--The specimen of this breccla is attached to a plate of granular quarts, and may. possibly have been part of a vein. �The shore of INems's ISLAND, the largest of the ENOLISH COxrAr's R,reB, (2. 2. 2. in the Map, p. 600,) is formed of fin beds, of a slaty argillaceous rock, which breaks  rhomboidal frsnents; but the specimen is indistinct. Fer- ruginous mines, probably consistln of broa Aesust/te, come !so from is island.

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