Description
The name Phyllite is from scientific Latin and means ‘leaf-stone’ and is typically a medium grey or greenish stone. Phyllite has a sheen from tiny grains of sericitic mica, graphite, chlorite and similar minerals and due to the heat and pressure the reflective grains grow more abundant and join each other in comparison to other metamorphic rocks.
Phyllite has a greater degree of metamorphism than slate but less than schist. It tends to split easily and has a slightly corrugated surface along cleavage planes. It is associated with regional metamorphism due to mountain building.
Uses
Decorative Aggregates, Floor Tiles, Building Stone, Facing Stone and Garden Decoration.
Sources