1. of, relating to, or containing phyllite; composed of or exhibiting the characteristics of phyllite (a fine-grained metamorphic rock).
Usage: geology; technical

Examples

• The phyllitic schist in the mountain range showed evidence of intense metamorphic pressure.
• Geologists identified phyllitic minerals in the rock samples collected from the quarry.
• The phyllitic texture of the stone made it suitable for roofing tiles.
• Phyllitic rocks often display a characteristic silky sheen on their surfaces.
• The region's phyllitic formations date back to the Precambrian era.