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MINERALS YEARBOOK, 1967 
 
Laie area on Oahu for base and concrete aggregate and as a raw material for
making cement and lime; from near Koloa on Kauai for aggregate; and from
the dredged stockpile at Kawaihae Harbor on Hawaii for aggregate and agricultural
liming. Output of miscellaneous stone consisted mainly of aa rock and decorative
lava slabs produced on the island of Hawaii; moss rock near Waianae and riprap
at Hawaii-Kai on Oahu; and unconsolidated volcanic rocks quarried on Kauai,
Maui, and Lanai for road maintenance. 
 Veriniculite.—Vermiculite from mines in Montana was expanded in a
vertical furnace on Oahu for lightweight plaster and concrete aggregate,
insulation, and agricultural uses. 
 
MINERAL FUELS 
 
 Crude oil from foreign oilfields was utilized by Standard Oil Co. of Call-

fornia at its Barbers Point refinery on Oahu, to produce asphalt, fuel oil,
gasoline, jet fuel, liquefied gas, and other petroleum products. The specially
designed refinery complex included an Isomax unit to obtain a greater yield
of light distillates for the mid-Pacific market, which has little or no use
for fuel oils such as those used for railroad and heating purposes. 
 Hawaii's demand for most refinery products was appreciably greater than
in 1966. The largest gain was for jet fuel used in commercial aircraft. Sales
of automotive gasolines, residual fuel oil for electric power generation,
and liquefied gas for cooking and refrigeration also increased. Demand for
asphalt in 1967 dropped to less than that in 1964, indicating a substantial
reduction in paving and roofing projects.