Biotite Gneiss Specimen, Biotite Gneiss is high-grade metamorphic rock formed from other rocks undergoing alteration from intense heat and pressure, Each

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For use in learning about differential stresses and foliation in metamorphic rocksCorrelates well to Next Generation Science Standards EvidenceTo achieve its characteristic banding, gneiss must be exposed to immense heat and pressure, and forms deep below earthFor use in demonstrating metamorphic properties and can be used in lessons about rock cycle