Bureau of Mines / Minerals yearbook: Area reports: domestic 1978-79
Year 1978-79, Volume 2 (1978-1979)
White, Doss H., Jr.; Sweeney, John W.
Puerto Rico, the Virgin Islands, and Pacific Island possessions, pp. 461-464 PDF (420.0 KB)
461The Mineral Industry of Puerto Rico, the Virgin Islands, and Pacific Island Possessions This chapter has been prepared under a Memorandum of Understanding between the Bureau of Mines, U.S. Department of the Interior, and the Department of Natural Resources of the Commonwealth of Puerto Rico for collecting information on all nonfuel minerals. By Doss H. White, Jr.1 and John W. Sweeney2 PUERTO RICO Mineral production in Puerto Rico in 1978 and 1979 added $132.9 million and $135.5 million, respectively, to the Island's economy. Puerto Rican nonfuel mineral production was restricted primarily to minerals used directly or indirectly in construction. Trends and Developments.—The construction industry in Puerto Rico experienced a decline in activity from 1974 through 1977. Conditions improved in 1978 when construction permits increased 23% to a total value of $444 million. As a result, construction employment and sales of construction materials showed positive signs of recovery for the first time since the recession began. In 1978, production of all mineral commodities increased, with the exception of salt, which remained the same as in the previous year. Table 1.—Nonfuel mineral production in Puerto Rico' 1977 1978 1979 Mineral Value Quantity (thousands) Quantity Value (thousands) Quantity Value (thousands) Cement, portland thousand short tons_ — Clays do~~ Lime do~~ Salt do__~ Sand and graveL do_ - - - Stone: Crushed do_ — — — Dimension do — — — Total 1,367 272 40 27 e12,~)4) 12,043 144 $67,775 387 3,007 639 e2100) 42,648 1,633 1,442 286 41 27 NA 13,765 143 $78,981 544 3,249 639 NA 47,611 1,898 1,406 260 37 27 NA 14,747 79 $70,191 556 3,307 639 NA 59,733 1,105 XX 137,089 )Q~ 2132,922 XX 2135,537 eSatimato NA Not available. XX Not applicable. 1Production as measured by mine shipments, sales, or marketable production (including consumption by producers). 2Total does not include value of items not available.
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