German

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Etymology

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Seife (soap) +‎ -n- +‎ Stein (stone)

Noun

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Seifenstein m (strong, genitive Seifensteines or Seifensteins, plural Seifensteine)

  1. (mineralogy) Synonym of Saponit (saponite)
  2. (geology) Synonym of Speckstein (soapstone)

Declension

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Further reading

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