The San Francisco call., 1906-06-11
Clay and Cement
Found in Many
Counties.
Quarries of CaIifor-
MIA Can Supply
Contractors.

state Mining Bureau in which direct
information is given to all concerned
where TO find within the borders Of the
state building materials in vast GUAM
titles The bulletin is exclusively de-
voted to facts about the great deposits
or structural materials in California,
which are ready at hand for builders
and to which they can turn and find at
once economy and advantage in using
home products.
Hundreds of millions of dollars will
be- expended in the next few years in
the rehabilitation of San Francisco. The
cost win be materially reduced, as the
State Mineralogist points out. by the
existence near by of ractically all the
fundamentals that will be required. The
bulletin on structural materials was
prepared early in the year, and was
prompted by the need of information
when, as the Mineralogist writes, "the
great demand for building stones. mar
bic, clay and other products, together
with the phenomenal strides made in
the various industrial pursuits which
are to very great extent dependent
upon the mineral industry of this State
has created a demand for an official bull
letin wherein would be found descrip-
tion not only of the developed but also
Of the undeveloped mineral resources of
;his State.
AT this time the informa ton will
prove TO be very valuable as an adver-
tisement abroad of the fact that in
structural materials. as well as in pre-
eious and base metals. California is very
rich. and that within its own confines it
has all the essentials for prosperous and
continuous growth.
STONE OF MANY CLASSES.
The completeness of the showing may
be judged from the statement that the
field work was commenced in July,
1903. The investigation of the subject
has extended over large areas. as all
counties in California. with one or two
exceptions. produce or contain struc-
tural or industrial materials in COM
mercial quantities"
Again the State Mineralogist re-
remarks: California offers exceptional
opportunities TO the investor. particu-
larly in the many mineral substances
of economic Importance large per-
centagc of these materials is imported
from other States or foreign countries
ever though the raw materials are here
not only in abundance. but in many
cases of superior quality. and only
awaiting the capital necessary to de-
velop them"
There is no question that the build
ing stone resources of this State have
now n greater economic Importance
than ever before The emergency lends
new and Significant values to that
which is at hand. Nearly every class
Of building and ornamental stone is
found in California.
Granite is quarried in Los Angeles
MADEIRA. Nevada. Placer Riverside. Sac
ramento. San Bernardino. San Diego.
Tuolumne and Tulare counties over a
range of hundreds of miles. Undevel-
oped masses of granite occur in other
counties.
Limestone is quarried in Amador.
Calaveras. Colusa, Napa, Santa Barbara
Butte. Ell Dorado. Contra Costa, Los
Angeles, Kern, Mono, Monterey. placer
riverside. San Bernardino Inyo- Santa
cruz. Santa Clara. Shasta Sonoma and
Tuolumne counties. Marble is auarried
IN Amador Riverside. San Bernardino
Inyo and Tuolumne counties. Sand
stone quarries are operated In Colusa
Los Angeles. Santa Barbara. santa
Clara. Ventura and Yolo counties. Slate
is largely quarried in Ell Dorado Coun
~ 1t is also found in several. other
counties.
Serpenune occurs in a great many
counties in large quantities. but has
oeen quarrfed only on a small scale in
a few piaces. 1t is quarried on Santa
Catalina Island. and as verde ANTIQUE
IN San Bernardino County Bubble and
broken stone for macadam are auarried
IN score or more counties. Porphyry
IS quarrted for building stone at San
Luis Obispo. Volcanic tufa is olIarries
at several places in CalaVeras County.
in Napa. San Luis Obispo and Sonoma
counties.
SEEN IN GREAT BUILDINGS.
In this array of building stones there
is SUFFICIENTLY wide range to give op-
portunitfes for the most fastidioiIs
builder TO find what is required for use
AT home. AS few striking examples of
the adoption OF local building materials
in prominent California structures Il is
instanced that the postofice building
at Seventh and Mission streets. San
Francisco. has ar exterior of RAYMOND
granite. The three lower floors of the
Fairmont Hotel on Mob Hill, are of
Raymond granite The first two stories
OF the w. H. Heiln1an building in Los
Angeles are of Riverside granite. The
buildings Of the Stanford University are
constructed of sandstone from duarries
In SANTA Clara County. The Kohl build
insAat the northeast corner of Califor-
MIA and Montgomery streets, San Fran
cisco. is Of Colusa sandstone The
st Francis Hotel in San Francisco is of
Colusa sandstone. The Dewey monu-
nent on Union Square is Raymond
granite. Coiusa sandstone is the ma
terial of which the exterior of the James
j.. Flood building. at the northeast cor
ner of Market and Powell streets, is
constructed
The public library building at Pasa-
dena. handsome structure. is Of Nile
green sandstone from Kern County.
Sandstone from Los Gatos, Santa Clara
County, was employed in the Carnegie
library at Santa Cruz. Many other
prominent buildings can be mentioned
TO show the adaptability and dura biiity
of California building stone, practically
all types of which were tried by fire in
this city recently and emerged with a
small percentage of'injury.
The deposits of granite, sandstone
and other building stones are practi-
caliy ineNhaustible The slate belt
runs through FL Dorado and Amador
counties and the outcroppings are visi-
bic for distance OF many miles At
tention of the outsider is called to the
fact that the materials for the manu-
facture of artificial stone are abundant
Brick elays are found in many locaii-
ties and the manufacture of bricks
alone constitutes a large California in
dustry. Lime IS also abundant In an
interesting chapter the growth of the
California cement industry is in indi-
Gated.
The quantity OF Portland cement
used In California remarks the state
q Ia Agk