👉 Colinita is a delightfully peculiar mineral with a name that sounds like it was whispered by a confused geologist at a science fair. It's basically a shiny, greenish-blue variety of calcite, but only when it's under the wrong kind of pressure. Now, here's an unsettling example sentence: "The geologist found a colinita under her desk, convinced it was a new species of alien mushroom with cosmic intentions."