26 Mr. William Phillips's Description 



and about six fathoms in length ; being disposed in bunches, the 

 largest and richest of which were about fifteen feet in length, by as 

 many in depth. 



In this lode, the red oxyd of copper was accompanied occasionally 

 by vitreous copper ore, black oxyd of copper, arseniate of copper, 

 arsenical pyrites, quartz, and fluate of lime. Native copper also 

 occurred in considerable quantities, generally in contact with the red 

 oxyd, and more or less intermingled with it. It was sometimes re- 

 markably brilliant, and occasionally occurred regularly crystallized. 

 There were however considerable masses of the red oxyd unaccom- 

 panied by any of the above substances, hollow within, and presenting, 

 on being broken, perfect and varied crystallizations. From the depth 

 of fifty-six fathoms, the search for this mineral was continued for 

 forty fathoms lower, with but little success ; bunches of a few tons 

 in weight, and smaller quantities were occasionally discovered, but 

 these became less frequent ; so that, at ninety-six fathoms under the 

 adit, the further working of this lode was abandoned. At this depth 

 one part of the vein consisted only of gossan, and was six feet in 

 width, forty fathoms from which it narrowed to three feet, and was 

 there composed of yellow copper ore and quartz. 



Further east than the principal body of the red oxyd of copper, 

 and at different depths in the Muttrell Lode ; that is, nearer the 

 junction of it with the Great Gossan Lode, were found the interest- 

 ing varieties of the arseniate of copper, and occasionally that substance 

 which in the paper before alluded to has been described by the 

 Count de Bournon, and by him called Cupreous Arseniate of Iron. 

 These substances were also found in considerable abundance at the 

 line of junction of the two lodes, and in its immediate neighbour- 

 hood eastward, at various depths, but with scarcely a trace of the 

 red oxyd of copper until the depth of fifty-six fathoms, at which 



