Zoned Labradorite | AMNH https://www.amnh.org/exhibitions/permanent/planet-earth/why-are-there-ocean-basins-continents-and-mountains/non-explosive-volcanism/intrusive-rocks/zoned-labradorite
This giant labradorite crystal exemplifies the texture that results when anorthosite rocks cool very slowly.
plates move past each other Anza-Borrego Atlantis