metamorphic
Biotite Schist
Metamorphic Schist (Biotite-rich)
AI-generated identification · may be incorrectHardness of 3-4 on Mohs scale, grayish-brown color with a sparkling or pearly luster due to abundant mica flakes, foliated crystal structure with visible mineral banding.
Identified More metamorphic →
Explore Biotite Schist in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness of 3-4 on Mohs scale, grayish-brown color with a sparkling or pearly luster due to abundant mica flakes, foliated crystal structure with visible mineral banding.
Formation & geological history
Formed through regional metamorphism of shale or mudstone under high temperature and pressure, typically during mountain-building events over millions of years.
Uses & applications
Primarily used as a decorative stone, aggregate in construction, or educational specimen for studying metamorphic geology.
Geological facts
Schist is characterized by its strong foliation, allowing it to split easily into thin, parallel sheets along planes rich in flaky minerals like biotite.
Field identification & locations
Identify in the field by its distinct scaly, sparkling appearance and visible parallel alignment of mica flakes; commonly found in ancient mountain belts and regional metamorphic terranes.
More like this
