CLAYS (MINERAL DEPOSITS)
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BTCLAYS + FELDSPARS + ALUMINIUM SILICATES (MINERAL DEPOSITS)
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UDC553.611
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Descriptor GERTONE + WALKERDE + BENTONIT (LAGERSTÄTTEN)
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Descriptor ENGCLAYS (MINERAL DEPOSITS)
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Descriptor FREARGILES (GISEMENTS)
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Variant GERWALKERDE (LAGERSTÄTTEN)
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Variant GERTONE/LAGERSTÄTTEN
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NTBENTONITE (MINERAL DEPOSITS)
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NTSMECTITE CLAYS + FULLER'S EARTH (MINERAL DEPOSITS)
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RTSMECTITE CLAYS + FULLER'S EARTH (MINERAL DEPOSITS)
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RTCLAYS + FELDSPARS + ALUMINIUM SILICATES (MINERAL DEPOSITS)