NONMETALS —Continued 
Diamond —Continued 
 
 Industrial - - - - value, thousands- — Diatomite and other infusorial
earth_ - - 
 
Feldsparandfluorspar____________ 
 
Fertilizer materials: 
 Crude: 
Nitrogenous             
 
Phosphatic______________ 
 
Potassic________________ 
 
Manufactured: 
Nitrogenous______________ 
 
Phosphatic: 
 Thomas(baslc)slag______ 
 
 Other_______________ 
 
Potassic________________ 
 
Other, including mixed  
 
 Ammonia__________________ Graphite, natural_______________ Gypsumandplasters_____________

 
Lime_______________________ 
 Iron oxides, processed__________ 
 
Precious and semiprecious stones, except diamond: 
 Natural value, thousands... - 
 
 Manufactured_ - - thousand carats_ - 
 
Pyrite,grossweight 
Saltandbrines 
 
Sodium and potassium compounds, n.e.s 
 
Stone, sand and gravel: 
 Dimension stone: 
Crude and partly worked_____ 
 129,774 141,653 West Germany 76~,962; Austria 31,012; 
     Italy 20,305. 
  67,738 73,234 Italy 88,321; Austria 5,537; West Ger 
     many 3,439. 
 Dolomite, chiefly refractory grade — - 16,267 21,924 Italy 16,713;
France 3,701; Austria 584. 
 Gravel and crushed rock 
 thousand ton&. - 4,083 4,261 France 2,174; West Germany 1,113; Italy

Limestone (except dimension) 7,234 6,714 France 6,474; West Germany 147.

Quartz and quartzite 13,836 18,605 Italy 10,993; West Germany 5,612; Greece

 1,146 1,154 Italy 582; France 270; West Germany 162. 
 44,859 46,656 West Germany 44,377; France 2,226. 
 287 213 France 131; West Germany 80; Japan 1. 
 38 -- 
 1,448 2,538 West Germany 1,378; Italy 967; Austria 
    154. 
 11,042 10,766 Austria 6,464; France 1,678; Italy 1,374. 
Talc, steatite, soapstone, pyrophyllite - -See footnotes at end of table.THE
MINERAL INDUSTRY OF SWITZERLAND 
 
Table 3.—Switzerland: Imports of mineral commodities —Continued

(Metric tons unless otherwise specified) 
895 
Commodity 1977 1978 Principal sources 1978 
 
 
Magnesite 
Mica: 
Crude, including splittings and waste_ 
 
Worked, including agglomerated splittings____________________ 
 
Pigments, mineral: 
Natural,crude_______________ 
Worked________________ 
Sand, excluding metal bearing thousand ton& 
Sulfur 
Elemental: 
Otherthan colloidal________ Colloidal________________ 
Sulfur dioxide  Sulfuric acicL________________ 
 $24,403 NA. 
 6,207 8,098 Denmark 4,909;France 1,539; West cr- 
    many 4$6. 
 14,784 10,065 West Germany 3,236; Italy 2,850; France 
2,813. 
 160 109 West Germany 72; Belgium-Luxembourg 
 10,393 11,393 Morocco 10,464; Netherlands 549; France 
    320. 
 80,314 84,004 France 69,763; West Germany 9,410; East 
    Germany 4,830. 
 63,052 72,179 West Germany 28,142; Austria 24,965; 
    Italy 6,885. 
 144,444 146,786 France 96,831; Belgium-Luxembourg 
    49,707; West Germany 248. 
 9,373 8,940 United States 2,619; France 2,377; Tuni 
    sia 1,797. 
 73,381 77,577 France 63,335; West Germany 9,410; East 
    Germany 830. 
 87,320 99,036 France 47,447; West Germany 22,398; 
    Belgium-Luxembourg9,469. 
 18,696 20,266 Austria 15,045; France 4,932; Italy 224. 
 174 190 West Germany 103; Austria 36; Italy 22. 
 56,167 52,454 West Germany34,309; France 9,722; Italy 
    8,333. 
 31,788 39,508 Italy 22,185; West Germany 17,045; Aus 
    tria 155. 
 3,018 4,310 Austria 3,470; France 268; Spain 198. 
 544 638 West Germany 301; India 122; Norway 
    72. 
 310 654 France 394; Belgium-Luxembourg 179; 
    Austria 64. 
 310 359 West Germany 169; Austria 134; France 
    45. 
 3,069 2,780 West Germany 2,614; United Kingdom 
    68; Belgium-Luxembourg 25. 
 $154,032 $184,929 United Kinjdom $21,702; West Germany 
    $20,688; France $18,287. 
 89,605 76,655 France 70,890; United Kingdom 1,330; 
    United States 1,160. 
 24,110 164 Italy 125; West Germany 39. 
 1,735 1,840 France 1,482; West Germany 174; 
    Belgium-Luxembourg92. 
 13,863 15,265 France 5,267; Italy 5,213; West Germany 
    3,712.