BARYTES. 
149 
Witlierite in the refining of sugar ; and tlie Strontia 
production of a splendid crimson tint in fireworks. 
minerals for the 
264. Barytes, or Heavy Spar 
(^Sulphate of Baryta), 
Wotherton, near Montgomery. 
265. Barytes, crystallized. 
266. Barytes, in tabular crys¬ 
tals. 
Dufton, WestmorUmd. 
267. Barytes, portion of a large 
colourless crystal. 
Dufton. 
268. Barytes, the largest crys¬ 
tal of this substance recorded, 
Aveighing 100 lbs. 
Dufton, Westmorland. 
Presented, from the Great Exhibition, 
1851, by John Cowper, jun., of Aldstone. 
(This large specimen is placed in the 
case beneath.) 
269. Barytes, crystallized. 
Aldstone. 
270. Barytes, in opaque white 
crystals, Avith sphenoids of Copper 
Pyrites, scattered over the surface. 
271. Barytes, in chisel-shaped 
crystals. 
Aldstone Moor, Cumberland. 
272. Barytes, successive depo¬ 
sition of different varieties of, in 
the cracks of contraction of a no¬ 
dule of clay-ironstone. 
From the lower measures, Clfton, 
Workington, Cumberland. 
Presented by AY. AV. Smyth, E.R.S. 
273. Barytes, in opaque Avhite 
crystals. 
Bowes, Yorkshire. 
274. Barytes, brick red, mas¬ 
sive. 
Snailbeach Lead Mine, Shropshire. 
275. Barytes, coloured black 
by oxide of manganese. 
Youlgrave, Derbyshire. 
276 to 279. Barytes, polished 
specimens of a stalactitic broAAm 
variety. 
From a cavern in the limestone at 
Arbelows, Derbyshire. 
(The large specimen. No. 279, is 
placed in the case beneath.) 
280. Barytes, massive variety 
termed “ Cawk,” employed for the 
adulteration of AAdiite-lead, and for 
other j)urposes. 
Buxton, Derbyshire. 
(Placed in the case beneath.) 
Nos. 281 to 283. Barytes, as 
prepared for application in the 
arts. 
Matlock, Derbyshire. 
281. Barytes, pounded ready 
for grinding. 
282. Barytes, after grinding 
in the mill. 
283. Barytes, Avhitened by 
boiling Avith hydrochloric acid, 
and noAA^ ready for use as a paint. 
284. Barytes, yellow variety, 
Avith Quartz. 
From the fullers’ earth pits. Lower 
Greensand, Nutfield, near Rei- 
gate, Surrey. 
Presented by P. Gosse. 
285. Barytes, in limpid crys¬ 
tals. 
From the Lead Lode of Menlieniot 
Mine, E. Cornwall. 
286. Barytes, crystallized. 
Occurring in the Copper Lode of 
United Mines, Gwennap, Corn¬ 
wall. 
287. Barytes, opaque Avhite 
variety. 
Ireland. 
Presented by the late John Taylor. 
288. Barytes, opaque Avhite, 
crystalline. 
Derry-ginali, Ireland. 
Presented by S. Weston. 
289. Barytes, finely crystal- 
I lized. 
Buckingham Mine, Buckingham 
Co., Virginia, U.S. 
Presented by John Baker. 
290. Witherite {jCarhonate of 
Baryta). 
Fallowfield mine, near Hexham 
JVorthumbeidand. 
