HYDRATED AMORPHOUS SILICATES (MINERALOGY)
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BTAMORPHOUS SILICATES (MINERALOGY)
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UDC549.691.2
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Descriptor GERWASSERHALTIGE AMORPHE SILIKATE (MINERALOGIE)
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Descriptor ENGHYDRATED AMORPHOUS SILICATES (MINERALOGY)
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Descriptor FRESILICATES AMORPHES HYDRATES (MINÉRALOGIE)
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NTALLOPHANES + IMOGOLITES (MINERALOGY)