Wikimedi'Òc

Minnesota's Distribution of Exposed Crystalline Rocks.PNG - Bettymnz4

Migmatite (Archean, ~ 3.524 Ga; Minnesota, USA) 1 (49156025601).jpg - Ser Amantio di Nicolao

Migmatite (Archean, ~ 3.524 Ga; Minnesota, USA) 2 (49156026641).jpg - Ser Amantio di Nicolao

Migmatite (Morton Gneiss Complex, Archean, ~3.524 Ga; Cold Spring Granite Company quarry, Morton, Minnesota, USA) 2 (40134740810).jpg - Ser Amantio di Nicolao

Migmatite (Morton Gneiss Complex, Archean, ~3.524 Ga; Cold Spring Granite Company quarry, Morton, Minnesota, USA) 1 (40134750560).jpg - Ser Amantio di Nicolao

Migmatite (Morton Gneiss Complex, Archean, ~3.524 Ga; Cold Spring Granite Company quarry, Morton, Minnesota, USA) 3 (41897958622).jpg - Ser Amantio di Nicolao