concrete aggregate and fill declined 22 percent, 8 percent, and 19 percent,
respectively. Lime sales dropped, owing to the State's lower yield of cane
sugar. The recovery of salt from seawater was curtailed by a change in plant
location. Gains in output were recorded only in the collection of black coral
gem material for the tourist trade and in clay mining by a clay products
company in its second year of operation. 
 P Preliminary. Revjsed XX Not applicable. 
 ' Production as measured by mine shipments, sales, or marketable production
(including consumption by producers). 
  2453The Mineral Industry of Hawaii 
This chapter has been prepared under a cooperative agreement between the
Bureau of Mines, U.S. Department of the Interior, and the Hawaii Department
of Land and Natural Resources for the collection of mineral data. 
 
 
By Roy Y. Ashizawa1 
 
 
 The total value of Hawaii's mineral output in 1967 amounted to $16.9 million,
a decrease of 20 percent from that of 1966 and the lowest since 1963. The
substantial setback resulted from sharp reductions in the volume of minerals
produced for the building trades, which were adversely affected by a tight
money situation, strikes, and inclement weather. 
 Mill shipments of portland cement declined 20 percent to 1.4 million barrels.
Production of pumice and volcanic 1 Mineral specialist, Bureau of Mines.
San 
cinder, sand and gravel, and stone for Francisco, Calif. 
 
Table 1.—Mineral production in Hawaii' 
 
1966 
 
196T 
 
Mineral 
Value 
Quantity (thousands) 
 
Value 
Quantity (thou~ sands) 
 
Cement thousand 376-pound barrels.Lime thousandshorttons. 
1,749 
 10 
$9,046 
 320 
1,395 
8 
$7,360 
265 
Pumice, pumicite, and volcanic cinder do...Sand and gravel do~Stone do~Value
of items that cannot be disclosed: 
 374 
 511 
5,079 
 716 
1,591 
9,482 
 290 
 469 
4,100 
 562 
1,467 
7.207 
Clays, gem stones, and salt                            
 
Total                                         
Total in 1957—59 constant dollars                    
XX 
98 
XX 
75 
 
XX 
XX 
21,253 
r20,592 
XX 
XX 
16,936 
~ 16,519 
 
 
 
Table 2.—~Value of mineral production in Hawaii, by counties 
 
County 1966 1967 Minerals produced in 1967, in order of value 
Hawaii $1,886,000 $2,097,000 Stone, pumice and volcanic cinder, sand and
graveL 
Honolulu 17,342,000 12,693,000 Cement, stone, sand and gravel, lime, salt,
clays. 
Kauai 582,000 712,000 Stone, sand and gravel, volcanic cinder. 
Maui 1,443,000 1,434,000 Sand and gravel, stone, volcanic cinder, lime, gesa
stones. 
 Total 21,253,000 16,936,000