Los Angeles herald., 1906-06-17

Elsinore to Corona, In Riverside county.
There are clay deposits In Sacramento,
San Benito, San Bernardino, San Diego,
San Joaquin San Mateo, Santa Clara,
Shasta, slsklyou and Yuba counties OF
high grade.
Eleventh IN Clay Products
The low grade clays Of California in
clude the adobe clays and the common
red brick and tile clays and shales.
These clays are found In many coun-
ties. The low grade clays Used in the
manufacture of red brick and red tile
are so abundant that they cannot be
proftably transported far. The brick
and tile factories are located near the
clay deposits, and the two are consid-
cred by the state mineralogist together.
In the value per ton the brick clays
rank low. In the aggregate or total
value they stand at the head of all the
clay industries.
The statistics Of the geological sur
vey for one year show that the clay In
dustrles of the United States were rep
resented by value of S122, 169,531, OF
which the value of the various pottery
figures while the value of the brick and
tile industries was s9s,000,0O0 In round
figures Forty per cent OF the whole
was represented by the red brick and
red tile
California" reports state Mineralo-
gist Aubury, "in the list of states ranks
eleventh in the value Of it's clay
products. The red brick product of
California has a greater aggregate
value than all the other clay products
of the state. 1t is also more widely dis
tributed throughout the state. The
pottery industry is limited to a. few
countries, while the common brick in
dustry ls represented in nearly every
county In the state"
There is so much information in the
bulletin from which extracts are taken
and quotations made that 1t is impos-
sible to give any more than an outline
in the space that can be devoted here
to the general topic.
Infant Glass Industry
The glass industry, connected with
building enterprises, Is reported to be
almost In its infancy In California. A
few factories are in operation, making
the lower grades of glass, but not
enough Is made to supply the local de-
mand and very little is shipped from
the state. The lime that is necessary
for the manufacture of glass Is widely
distributed over the state, and there is
little difficulty in obtaining it in suffi-
Silica occurs in large quantities In
the form of sand, sandstone and quartz
veins. There is a large sand deposit
at Monterey of sufficient purity to make
good glass, and 1t is used for that pur-
pose to the extent of about 5000 tons
year. At Tesla, Alameda county, is
another large deposit of sand that is
used for glass making. No sandstone
is used in this state for the manufac-
ture of glass.
Iron, so the mineralogist reports, has
been found in Butte, Calaveras, Ell Do
RADIO, Los Angeles, MADEIRA. Nevada,
Placer Plumas, San Benito, San Ber-
nardino, San Diego, Shasta, San Luis
Obispo, Sierra, Sonoma, Siskiyou, Te-
hama and Trinity counties. The local
material does not figure in building
operations yet.
A few figures taken rom another
publication by the state mining bureau
give an idea of the extent to which
California structural materials have
been developed by industries.
In 1904 the value of structural mate
rails in California was $7,274,846. The
figures for 1905 have not been reported.
The state mineralogist arrays the min
eral products of the state in the fol-
lowing order as to values: Gold, petro-
leum. copper, clays and their products,
cement, rubble, quicksilver. The struc-
tural materials, therefore, come near
the head of the line, numerically.
The total value of all the metallic
substances in 1904 was $25 ia, 500.
Among the structural materials are in
cluded brick and pottery clays, Port
land cement, lime and limestone, mac
adam, rubble and concrete rock, paving
blocks, marble. granite sandstone, SER
pentine, slate, glass, sand and soap
stone.