SIC 1429 Crushed and Broken Stone, Not Elsewhere Classified

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• NAICS CODE(S).
• FURTHER READING.

SIC 1429

This classification covers establishments primarily engaged in mining or quarrying crushed and broken stone, not elsewhere classified. Types of stone processed by this industry include basalt, diabase, dolomitic marble, gabbro, marble, mica schist, onyx marble, quartzite, sandstone, and volcanic rock.

NAICS CODE(S)

212319

Other Crushed and Broken Stone Mining and Quarrying

In 2005 approximately 70 percent of the crushed stone produced in the United States was limestone and dolomite (see SIC 1422: Crushed and Broken Limestone), followed by granite at 16 percent (see SIC 1423: Crushed and Broken Granite). The remaining 14 percent, specifically covered under this industry classification, includes traprock, which accounted for 6 percent of crushed stone produced in 2005, followed in descending order of tonnage by sandstone and quartzite, miscellaneous stone, marble, volcanic cinder and scoria, calcareous marl, slate, and shell.

After output declined in both 2002 and 2003, the crushed stone industry was expected to enjoy modest growth in 2004, fueled in part by increased federal spending on highway construction and maintenance. For example, the Safe, Accountable, Flexible, and Efficient Transportation Equity Act of 2003 was expected to boost demand for crushed stone. Indeed, production of crushed traprock increased by 9.6 percent in 2004; crushed marble production increased by 9.3 percent; miscellaneous stone by 7.1 percent; and slate by 4.8 percent.

The mining of aggregates was relatively unorganized and undocumented for much of the nineteenth century. The classification, method, and organization of the aggregate industry began to take shape in 1882, when the U.S. Geological Survey began compiling an annual publication titled Mineral Resources of the United States. The publication added its first chapter on stone in 1889. Aggregate production was originally reported in dollar amounts of product sold but has since been assessed in terms of both tons and dollar value of product sold or used. Production volume of crushed stone escalated dramatically during the twentieth century. The dollar value of crushed stone in 1900 was $24 million. In 1950, the value increased to $422 million, representing 325 million tons of crushed stone. The crushed stone industry in 2005 was valued at more than $10 billion, representing more than 1.6 billion tons produced, of which 231 million tons comprised the crushed...