No, but slate and gneiss are both a type of metamorphic rock.
Slate will also turn into Gneiss, eventually, if metamorphosing continues. The series is Shale (sedimentary) >> Slate (metamorphic) >> Phyllite >> Schist >> Gneiss
metamorphic grade
Shale is a common parent rock for both slate and gneiss. Slate forms from the metamorphism of fine-grained sedimentary rocks like shale, while gneiss forms from the metamorphism of various rock types including shale.
Slate
slate, marble and gneiss
gneiss, schist, slate
Gneiss undergoes metamorphosis at higher temperatures than slate, which results in a higher grade of metamorphism. This means gneiss typically has a higher metamorphic grade, indicating it has been subjected to more intense pressure and temperature conditions compared to slate. Consequently, gneiss exhibits coarser mineral grains and more complex foliation patterns than slate.
Gneiss.
- Amphibolite - Eclogite - Gneiss - Greenstone - Hornfels - Marble - Migmatite - Phyllite - Quartzite (Metaquartzite) - Schist - Slate - Soapstone
Slate, hornfels, schist, gneiss.
shale slate gneiss
The mineral common in schist and gneiss but not common in slate and phyllite is garnet. Garnet typically forms in higher-grade metamorphic rocks such as schist and gneiss due to the increased temperature and pressure conditions necessary for its formation.
Shale can metamorphose into slate, which can metamorphose into phyllite, which can metamorphose into schist, which can metamorphose into gneiss.