Office of the Superintendent of Government Printing,
Text on page 69
PHYSICAL 'FEATURES, GEOLOGY, and c.
Professor Oldham1 has made two assays of this ore, and informs me that it contains '191 per cent, of silver in the galena, and 0*225 per cent, of the precious metal in the lead, and has favoured me with the following comparative table of the maximum results of assays of galenite from the under-mentioned mines, by which it will be seen that the Ponsee ore is richer than any of them :a
Hartz ... ... ... .. 0-03 to 0-05
English ... ... ... ... 0-02 to 0-03
Scotch (Lead hills) Tuscany . . Ponsee
... 0-03 to 0-06 ... 0-32 to 0-72 0-191
No detailed information regarding the productiveness of these mines could be obtained from the Kakhyens, but they have the reputation of being very rich in ore, and if this be so, the large percentage of silver would make them very valuable. They are of easy access, and from their close proximity to the borders of China, little or no difficulty would be experienced in finding labourers to work them. They have been periodically worked by the Burmese, who have no claim whatever to them beyond what they may have paid the Kakhyen Tsawbwas of Ponsee and Ponlyne for permission to remove the ore. They have, however, been abandoned since the outbreak of the recent Mahomedan rebellion in the Momien district, now fifteen years ago, but a few Kakhyens occasionally remove some of the metal for their own wants. As has been already stated, they appear to be the mines of the maps incorrectly placed a short way to the north-east of Muangmo, and to the south of the Shuaylee.
Silver is said to be found also on the right bank of the Tapeng, high up the hill sides to the west of Ponsee, in a bed similar to the one we have just indicated as the probable site of the galena vein of the principal mines. The existence of a white argentiferous crystalline limestone, on both banks of the Tapeng, at different elevations, renders it highly probable that this portion of the valley of the river is an immense faulted cynclinal. Another mine is said to exist to the east of Muangmo, in the remote valley of Kaingma.
Gold is found on a hill to the north of the village of Ponline, and I was shown at Bham a small quantity of this metal in grains as large as small peas, which was said to have come from these hills.
1 A galena, very rich in silver, is mentioned by Dr. Oldham as having been procured from the Kuenapa range to the east of Mandalay, the percentage of the two metals being lead 63*900 ; silver 0*0625 per cent. Notes on Geological Features of Irawady, Yule's Ava., App. p. 60.1 A galena, very rich in silver, is mentioned by Dr. Oldham as having been procured from the Kuenapa range to the east of Mandalay, the percentage of the two metals being lead 63*900 ; silver 0*0625 per cent. Notes on Geological Features of Irawady, Yule's Ava., App. p. 60.