Description of Industries and Summary of Findings INDUSTRY 1499, MISCELLANEOUS NONMETALLIC MINERALS, EXCEPT FUELS This industry is made up of establishments primarily engaged in mining, quarrying, milling, or otherwise preparing nonmetallic minerals, except fuels. This industry includes the shaping of natural abrasive stones at the quarry. Establishments primarily engaged in the production of blast, grinding, or polishing sand are classified in industry 1446, and those calcining gypsum are classified in manufacturing, industry 3275. In the 1992 Census of Mineral Industries, Industry 1499, Miscellaneous Nonmetallic Minerals, Except Fuels, had employment of 5.5 thousand. The employment figure was 21 percent below the 7.0 thousand reported in 1987. The total value of shipments and receipts for the industry was $596.3 million in 1992. The value added by mining was $419.0 million in 1992. Value added per employee was $76.2 thousand in 1992; it was $62.6 thousand in 1987. The total cost of supplies used by establishments classified in this industry amounted to $219.7 million, while the cost of selected supplies, minerals received for preparation, and purchased machinery installed amounted to $141.5 million and is shown in file NC92F7. The total cost of fuels used in this industry amounted to $30.5 million in 1992. Data on specific fuels used also appear in file NC92F7. Single-establishment companies in this industry with up to 5 employees were excluded from the mail portion of the census. The data for these establishments (and a small number of larger establishments whose reports were not received at the time the data were tabulated) were imputed as described above. These establishments accounted for 9 percent of the total value of shipments and receipts.