Do You Have Time to Cast Tech Magic or an Arcane Check?

You're looking ahead with your elven eyes, which is a strangely racist line in Lord of the Rings. What do you see? You spot something shiny on the ground. Do you have to cast like the tech magic or something? Can I check it for him? Yes. Roll your Arcana check. This is a four. It's a rock. Do you sense transmutation magic? Whoa, what does that mean? Is this an opal or a noble? Should I keep it? Transportation magic is when you can turn something into something else. So does that mean this? Yeah. Something else that is it like disguising itself as a shiny opal? Hey, this