BRECCIA LODES. 
109 
290. Part of a Copper Lode, 
exhibiting many plates or combs. 
Wheal Cathedral, Gwennap,' 
Cornwall. 
Presented by Sir II. T. De la Beebe. 
291. Galena, with veins of 
Quartz. 
Nant-y-Mwyn Mines, Cilciom, 
Caermarthenshire. 
Presented by Captain Harris. 
292. Portion of adjoining 
“ Country ” imbedded in crystal¬ 
lized Quartz. 
Knockmahon Mines, County Wa¬ 
terford, Ireland. 
293. Part of a Copper Lode. 
Combs or j)lates in which Copper 
Pyrites and Blende are dissemi¬ 
nated. 
West Wheal Alfred, Hayle, Corn- 
wall. 
Presented by Sir H. T. De la Beche. 
Examples of Breccia Lodes 
Wall-case 31. 
Shelf 1. 
297. Brecciated portion of a 
Copper Lode. A little Oxide of 
Copper occurred here; the frag¬ 
ments are of Serpentine, the paste 
of steatite and calcite. 
Huel Downas, St. Keverne, Corn¬ 
wall. 
Presented by Sir H. T. De la Beclie. 
298. Vein-stuff, showing a 
brecciated portion of north and 
south Lodes. 
Gyrn vein, Holywell, Flintshire. 
299. Brecciated Lode, with 
Galena and Carnelian. 
Bwlch-y-Plwm, near Tan-y-JBivlch, 
Merionethshire. 
300. Brecciated Lead Lode, 
with veins of Carnelian. 
Bwlch-y-Plwm, Merionethshire. 
Presented by W. W. Smyth, F.R.S. 
301. Brecciated portion of a 
Copper Lode. 
Huel Trenwith, St. Ives, Cornwall. 
Presented by Sir H. T. De la Beche. 
Shelf VII. 
294. Part of a Copper Lode, 
Avhere not very productive. 
Foivey Consols Mine, St. Blazey, 
Cornwall. 
Presented by the late J. Austen Treffiy. 
295. Part of a Copper Lode of 
fair produce. 
Fowey Consols Aline, St. Blazey, 
Cornwall. 
Presented by the late J. Austen Treffry. 
296. Part of a large Copper 
Lode, with a strong rib of Mis- 
pickel, or Arsenical Pyrites. 
Holmbush Mine, Callington, Corn- 
IV all. 
WITH Non-metallic Cement. 
Shelf II. 
302. Pock, intersected by veins 
of Quartz with a little Copper 
Ore. 
Parfs Mine, Open Cast, Angle¬ 
sey. 
303. Breccia, cemented by 
Brewsterite (a Hydrous Silicate of 
Alumma, Baryta, and Strontia), 
Strontian, Argyleshire. 
304. Brecciated Lead L.ode. 
Fragments of Black Clay Slate, 
cemented by Brown Spar. 
305. Brecciated Copper Lode. 
Fragments of rock cemented by 
Quartz, coated with Green Carbo¬ 
nate of Copper. 
Burra Burra Mines, South Aus¬ 
tralia. 
306. Fragments of Greenstone, 
surrounded by Zinc Blende, Gale¬ 
na, and Pyrites, and cemented by 
Quartz into a breccia. 
Theresa Lode, Schemnitz, Hungary. 
307. Brecciated portion of a 
Copper Lode. Fragments of 
