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Feldspar
Feldspars are an important group of aluminosilicates constituting
60% of the Earth’s crust.
They crystallize from magma in both intrusive and extrusive
rocks. They occur as compact minerals, as veins, and are developed
in many metamorphic rock. They may also be found in many types
of sedimentary rock.
These rock-forming minerals are used in the ceramic and glass
industry, where they act as a source of alumina and alkali,
and as a flux to lower melting temperature.
Link:
-British Geological
Survey, World Minerals Statistics 1998-2002
-EUROFEL-The
European Association of Feldspar Producers
Feldspar Production
Thousand Tonnes
| |
1999 |
2000 |
2001 |
2002 |
2003 |
| Europe |
|
|
|
|
|
| France |
100.000 |
80.000 |
70.000 |
105.000 |
110.000 |
| Germany |
28.260 |
31.124 |
30.381 |
34.429 |
33.289 |
| Italy |
46.916 |
40.000 |
38.000 |
60.000 |
62.000 |
| Hungary |
47.000 |
47.500 |
46.000 |
45.000 |
40.000 |
| Russia (Europe) |
20.000 |
33.600 |
34.000 |
32.000 |
55.000 |
| Spain |
142.000 |
135.000 |
126.000 |
134.000 |
125.000 |
| United Kingdom |
40.000 |
36.000 |
50.000 |
53.000 |
56.000 |
| total |
424.176 |
403.224 |
394.381 |
463.429 |
481.289 |
| |
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|
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| Africa |
|
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| Kenya |
93.602 |
100.102 |
118.850 |
85.015 |
80.201 |
| Morocco |
83.100 |
77.800 |
96.500 |
93.125 |
95.000 |
| Namibia |
57.700 |
66.128 |
81.245 |
81.084 |
85.000 |
| South Africa |
217.500 |
212.709 |
286.400 |
227.000 |
240.000 |
| total |
451.902 |
456.739 |
582.995 |
486.224 |
500.201 |
| |
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| Asia |
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| China |
2.550.000 |
2.200.000 |
2.200.000 |
2.150.000 |
2.450.000 |
| Korea |
28.000 |
26.000 |
27.000 |
28.000 |
25.000 |
| Iran |
18.218 |
18.500 |
35.986 |
32.006 |
47.730 |
| Kazakhstan |
85.000 |
83.000 |
82.000 |
80.000 |
76.000 |
| Mongolia |
170.000 |
168.000 |
127.293 |
160.000 |
122.340 |
| Namibia |
57.700 |
66.128 |
81.245 |
81.084 |
85.000 |
| Russia (Asia) |
180.000 |
302.400 |
306.000 |
288.000 |
495.000 |
| Uzbekistan |
93.000 |
92.000 |
91.000 |
90.000 |
88.000 |
| total |
3.181.918 |
2.956.028 |
2.950.524 |
2.909.090 |
3.389.070 |
| |
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| America |
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| Argentina |
7.000 |
6.000 |
5.800 |
5.900 |
5.530 |
| Brazil |
38.200 |
45.000 |
54.399 |
47.899 |
45.000 |
| Mexico |
557.106 |
635.230 |
619.468 |
622.477 |
756.258 |
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total |
602.306 |
686.230 |
679.667 |
676.276 |
806.788 |
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| WORLD TOTAL
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4.660.302 |
4.502.221 |
4.607.567 |
4.535.019 |
5.177.348 |
Source: Österreichisches Bundesministerium für Wirtschaft
und Arbeit, Abteilung IV/7: World Mining Data, April 2005
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