India’s 2.56-billion-year-old Pichhore rock baffles scientists

India's Pichhore orbicular granite, 2.56 billion years old, is a rare geological marvel. This ancient rock formation displays unusual spherical structures called orbicules, which are rarely found globally. Researchers discovered inherited zircon crystals indicating Earth's earliest crust recycled...

First seen 7h ago · latest update 7h ago · India · science