100 
LODES CONSISTING 
PoKTioxs OF Lodes consistii 
Wall-case 27. 
Shelf I. 
180. Branch of Tix Ore, in 
granite ; Tin-stone '^vith colourless 
Quartz. 
Boswedden Mine, St. Just, Corn¬ 
wall. 
Presented by Sir H. T. De la Beclie. 
131. Crystalline mixture . of 
Fluor Spar and Sulphate of 
Baryta, forming the vein stone 
of a large east and west lead lode. 
Bonsai leys, Derbyshire. 
132. Granular-crystalline ag¬ 
gregation of Fluor Spar and 
Sulphate of Baryta, filling an 
east and west lead lode. 
Bonsai leys, Derbyshire, 
Examples of Lodes composed 
Shelf II. 
137. A vein of Cassiterite, or 
Peroxide of Tin, in Mica, run¬ 
ning through granite. 
Zinnivald, Bohemia. 
138. Argentiferous Galena, 
Copper Pyrites, and Quartz. 
Glenmalur, Co. Wicklow, Ireland. 
Contributed by the Irish Geological 
Survey. 
139. Crust of Quartz, origi¬ 
nally deposited on Fluor Spar, 
which has since disappeared, leav¬ 
ing the impression of its cubical 
crystals. The Quartz has after¬ 
wards been nearly covered by the 
deposition of crystals of Zinc 
Blende, or Sulphide of Zinc. 
From the lead-bearing veins of 
Nenthead, Cumberland. 
140. Calcareous Spar, in 
scalenohedral crystals, part of 
them invested by purple Fluor 
Spar. 
Ecton Mine, Staffordshire. 
141. Veinstone, showing the 
incrustation of cubical crystals of 
chiefly of two Minerals. 
133. Galena and Sulphate of 
Baryta, in successive depositions. 
IS ear Buxton, Derbyshire. 
134. Bib of Argentiferous 
Galena, containino: 138 ozs. Sil- 
ver to the ton ; along with grey 
Quartz in granite country. 
From the 60 fathoms level. Old 
Foxdale Mines, Isle of Man. 
Presented by M. W. Beckvith. 
135. Crystallized Galena, 
with Fluor Spar, both encrusted 
with Sparry Iron Ore, or Carbo¬ 
nate of Iron. 
Allenheads, Nor thumb erland. 
136. Copper Pyrites, with 
calc-spar, raising in October 1850, 
from the Black Limestone, at 30 
fathoms open. 
Ecton, Staffordshire. 
F several different Minerals. 
Argentiferous Galena, with 
Sparry Iron Ore and Iron Pyrites. 
Allenheads, Northumberland. 
142. Copper Pyrites and Car¬ 
bonate of Iron. 
Part of the Lode of Virtuous Lady 
Mine, Tavistock, Devonshire. 
Presented by Sir H. T. De la Beche. 
142a. Tin Stone, or Cassiterite 
(peroxide of tin), with Bed Oxide 
and Green Carbonate of Copper. 
Near St. Day, Gwennap, Corn¬ 
wall. 
143. Crystallized Peroxide of 
Tin, in a joint or cleavage of gra¬ 
nite filled with tin ore, quartz, 
and mica. 
St. Michael's 3Iount, Cornwall. 
Presented by Sir H. T. De la Beche. 
144. Crystallized Tin Ore, with 
Mica, and Quartz, lining one side 
of a joint in granite. 
St. Michael’s Moxint, Cornwall. 
Presented by Sir H, T. De la Beche. 
144a. String of Blende, with 
Fluor and Quartz, in slate. 
St. Agnes, Cornwall. 
Presented by Sir H. T. De la Beche. 
