graywacke

graywacke
earth.sc.	grauwacke

| slate

slate
comp., MS	tablette
construct.	schiste dur et compact; schiste ardoise; ardoisier
mineral.	schiste
nat.res.	schiste argileux
soil.	schiste ardoisier
slates
life.sc. coal.	pertes; schistes de lavoir; steriles

- only individual words found