"Juparana Colombo Granite" - Precambrian migmatite from India.
Migmatites are very high grade metamorphic rocks that form by partial melting of gneisses. The felsic minerals have melted, cooled, and recrystallized - they form the light-colored, crystalline-textured bands in the rock. The mafic minerals have higher melting temperatures and still retain their metamorphic foliated character.
Locality: apparently derived from a quarry at the town of Thogaimalai, central Tamil Nadu State, Northern Madurai Block, Pandyan Mobile Belt, Southern Granulite Terrain, southern India
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