Table 1.—Mineral production in Florida 1 
 
 
1966 
 
1967 
Mineral —————      
 
 
 
 
Quantity Value (thousands) 
Quantity 
Value 
(thousands) 
Clays thousandshorttons~Lime do_~Natural gas million cubic feet.Peat shorttons.Petroleum
(crude) thousand 42-gallon barrels -Sandandgravel thousandshorttons..Stone
2 do. 
Value of items that cannot be disclosed: Cement, magnesium compounds, natural
gas liquids, phosphate rock, rare-earth metal concentrates, staurolite, stone
(dimension limestone 1967), titanium concentrates, zirconium concentrates,
and values indicated by symbol W                     
 
Total 3  
 762 $11,408 185 1,966 212 30 11,500 91 1,799 W 7,403 6,417 35,023 38,167

 XX 237,368 
756 
155 
123 
22,180 
1,568 
6,912 
33,971 
 
 
 
 
XX 
$11574 
2,425 
18 
155 
W 
6,479 
38,723 
 
 
 
 
250,428 
 
XX 295,447 
XX 
309,797 
Total 1957—59 constant dollars -          
XX r 279,222 
XX 
P 284,579 
 i Preliminary. r Revised. XX Not applicable. 
W Withheld to avoid disclosing individual company confidential data; included
with "Value of items that cannot be disclosed." 
1 Production as measured by mine shipments, sales or marketable production
(including consumption by producers). 
2 Excludes dimension limestone; included with "Value of items that cannot
be disclosed." 
3 Data may not add to totals shown because of independent rounding. 
  225The Mineral Industry of Florida 
 
This chapter has been prepared under a cooperative agreement between the
Bureau of Mines, US. Department of the Interior, and the Geological Survey
of Florida for collecting information on all minerals except fuels. 
 
 
By John W. Sweeney' and Robert 0. Vernon2 
 
 
 
Mineral production in Florida totaled almost $310 million in 1967, $14 million
above that of the previous record set in 1966, and continued the upward trend
in mineral production that began in 1962. In 1967, value increased for most
mineral commodities, while quantity produced decreased slightly for many
of the same commodities. 
The Florida phosphate industry continued to be the major supplier of phosphate
rock for domestic markets and a leading exporter for international markets.
Exports of phosphate rock from Florida ports increased 9 percent in tonnage
over that of 1966 with all 
 
For the 74th consecutive year, Florida led the Nation in phosphate rock output,
total marketable production increasing slightly over that of 1966, setting
a record high. Florida also ranked first among the States in the production
of fuller's earth and zircon, second in ilmenite, and was the only producer
of staurolite. 
 
 
phosphate exports moving through the ports of Tampa, Boca Grande, and Jacksonville.
Shipments were made to 36 foreign countries, with Canada, West 
 
 1 Mining engineer, Bureau of Mines, Knoxville, Tenn. 
 2 Director, ~Division of Geology, Florida Board of Conservation, Tallahassee,
Fin.