1. the property of metamorphic rock characterized by the parallel arrangement of platy minerals that allows the rock to split easily along planes
Usage: geology

Examples

• The geologist examined the schistosity of the rock sample to determine its metamorphic history.
• Schistosity develops when rocks are subjected to intense pressure and heat deep within the Earth.
• The pronounced schistosity in the outcrop made it easy to split the rock into thin sheets.
• Students learned to identify schistosity by observing the parallel alignment of mica flakes in the specimen.
• The degree of schistosity indicated the intensity of metamorphism the rock had experienced.
• Quarry workers took advantage of the rock’s schistosity to extract flat slabs for construction.