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Translation examples
The quartzites are intersected by dykes of dioritic porphyrites and, less often, by dykes of biotite-carbonate.
Ces quartzites sont coupés de dykes de porphyrites dioritiques et, moins fréquemment, de dykes de biotite et de carbonate.
It's encrusted with igneous biotite in a mica schist.
Lt de incrustées de ignée biotite dans un schiste de mica.
Mica whether biotite or muscovite is a silicate mineral that's true.
Le mica, biotite ou muscovite est fait de silice minéral, c'est vrai.
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