de kupferschiefer (n)
― RelatedTo ⟶
Weight: 1.0
en copper Source: English Wiktionary
de kupferschiefer (n)
― RelatedTo ⟶
Weight: 1.0
en schist Source: English Wiktionary
de kupferschiefer (n)
― RelatedTo ⟶
Weight: 1.0
en shale Source: English Wiktionary