The Wallace miner. [volume] (Wallace, Idaho) 1907-current, 1907-12-26
MINERAL PRODUCTION.

q sa.4sls
The total silver product for 1906
was. a. usual, divided about evenly
between silicious ores. copper ores
and lead ores. In percentages OF the
total the division was as follows:
Glicous ores, 1913 per cent: copper
ores, 27.7 per cent; copper-lead ores,
11.S per cent: lead-zinc ores, 4 per
cent; zinc ores, or per cent: placers,
0.3 per cent. As compared with the
product in 1906 the output in 1906
shows q small loss from silicious
ores, larger loss from lead ores, a
small gain from copper ores, and a
rather heavy increase from mixed
ores. The states rank az follows:
Colorado, Montana, Utah, Idaho. Ne
vada, Arizona and California.
The placers yielded 171,o5S ounces
Of silver as by-product, gain over
1905. corresponding to the greater
yield of placer gold.
The total quantity derived from
dry and silicious ores was 16,792,.
799 ounces, as against 17.1S7, 1888
ounces in 1906. The important states
rank as follows: Nevada, Colorado,
Montana, Arizona, California. AL.
though the total is large the proper
ton Of silver derived from ores In
which that metal prsdoninates Is
small This emphasizes the fact that
silver is practically by-product OF
smelling ores and gold-silver milling
ores, and explains why the rise .ir
value during the last years has failed
to increase the production greatly
Nevada produced nearly 100000
ounces Of silver from silicious ores
chiefly from Tonopah, but even these
ores contain one part Of gold to three
parts Of silver, by value. The Colora-
do production closely approaches that
Of Nevada, but here, again, most Of
1t came from mixed ores, either py-
rite or silicious, which are concentrat-
ed and smelted, and which also con-
tain lead, copper or gold, or form the
gold-silver ores, partly free-milling
from the Gilpin or San Juan regions.
Montana has in Granite county a
district Of purely silver ores. but the
yield from this source fell OF In
1906. the largest quantity Of silver
produced in Montana being derived
from Butte copper ores. The output
Of the state from silicious ores Is IT.
tie over 1.225,000 ounces. Arizona
comes next with almost 100000
ounces, but in no other state does the
quantity reach half a million ounces.
The silver Is recovered by amalga-
nation or cyanide processes; from
smelling ores by desilverization OF
lead bullion, or by electrolytic re-
flning Of copper.
From copper ores 15.SS0,S70 fne
ounces we're recovered. The increase
over 1905, in spite Of heavily In
creased tonnage, is explained by the
low tenor Of copper ores In silver.
The states rank as follows: Montana,
Utah, Arizona, California, Idaho, and
Colorado. Montana yielded nearly
10000, 900, the largest silver produc'
ton in any state from any one kind
Of ore. This represents decrease Of
about 1000 ounces from the fg'
ures for 1905, in spite OF heavily
increased tonnage. Arizona, from
heavy tonnage, produced only 1885,
600. Utah, from much smaller ton
mage, produced over 2.oOO,oO(
ounces. None of the other states
reached the 100000 ounce mark
The extraction of gold and silver pei
ton from the ore Of the principal cop
per camps runs approximately as fol
lows:
Gold and silver produced IN prin
.o-,o~ m ~, nc In OnnOoos