HISTORY OF TEXAS. 167
ore in places. Analyses from various localities
of average specimens of these copper
clays yield from 1.6 to 4.5 per cent. of copper.
In any successful attempt to utilize
these ores the work must be undertaken with
a view of recovering the copper from the
copper clays by lixiviation as the principal
object. The extent of the deposits and amount
of copper contained in them in places seem
to warrant this character of development,
and the probability of finding many rich
pockets, such as have been found in nearly all
the workings so far attetnptod is additional
inducement for the erection of such works.
Some of these pockets have yielded as much
as 6,000 pounds of ore assaying sixty
per cent. copper.
The general lines of the outcrop of copper
clays are as follows: The lower bed appears
at Archer, and from there northeast to the
mouth of Cache creek, tht, original place of
discovery. The next bed is found in a line
running from Paint creek, in Haskell county,
northeast through the northwestern part of
Throckmorton county, and crossing Baylor
county west of Seymour, and Wilbarger
county east of Vernon into Indian Territory.
The upper bed appears at Kiowa and Buzzard
Peaks, and passing through the northwestern
part of Hardeman is finally found
on Pease river west of Margaret.
In the central mineral region copper ores
are known principally from the surface indications
of carbonates and sulphides, which
are found in outcrops and scattered through
thle rocks in various localities. The principal
outcrops are confined to the Babyhead district,
extending westward from the Little Llano to
the head of Pecan creek. A few others are
found still further westward in Mason county,
and some in Llano, but all are apparently
connected with the same series of rocks.
The ores at the surface are largely carbonates,
both Azurite and Malachite occurring,
but the latter predominating. Tetrahedrite
is more or less common, a::d sometimes carries
considerable silver. Ohalecopyrite is also
present in small quantities, and in some
places Bornite occurs.
The various prospecting works which are
scattered through this area, beginning at the
Houston & Texas Central Railway diggings
on the east, includes many trial shafts and
pits sunk by Captain Thomas G. McGehee
on Little Llano, Yoakum and Wolf creeks,
Hubbard Mining Company on Pecan creek,
others by the Houston Mining Company on
Wolf creek, and the Miller mine, also on
Pecan. Further west in Mason county similar
prospecting works are found. In addition
to these some prospecting has been done
in the vicinity of Llano, and also southeast
of that city. Specimens taken from the different
localities by different members of the
survey assayed all the wciy from one per cent.
to forty-five and six-tenths per cent. copper,
in silver from nothing to 107.8 ounces per ton,
and of gold from nothing to one-filth ounce.
There have been several attempts at development,
but there are no mines in successful
operation at present. The work that has
been done on the different outcrops has not
been carried sufficiently far, nor has it been
of such a character, as to make it possible to
speak with certainty regarding the existence
of extensive bodies of copper ore in the district.
What has been done, however, taken
in connection with the outcrops and assays,
and our knowledge of the geological formation
of the country, suggests the accumulation
of ores of considerable importance below,
and will justify a much larger expenditure
for the purpose of developing them than has
yet been made,
MITO YOF TXS
Lewis Publishing Company, publisher. History of Texas, together with a biographical history of Milam, Williamson, Bastrop, Travis, Lee and Burleson counties : containing a concise history of the state, with portraits and biographies of prominent citizens of the above named counties, and personal histories of many of the early settlers and leading families. Chicago. The Portal to Texas History. http://texashistory.unt.edu/ark:/67531/metapth29785/. Accessed May 4, 2015.