Stoneborn Feat

Prerequisites: 1st level only, near-human variant
With cracked and abrasive skin, stoneborn appear as if they were roughly hewn from granite and have similiarly rigid personalities. These near-humans are proud of their connection to Elemental earth and believe themselves conquerors, fated to rule over every stone. YOu have the following racial traits:
Stony Skin. You have a +1 bonus to Armor Class
Sure-Footed. You have advantage on ability checks and saving throws you make to resist being knocked prone or moved against your will.
Oresight. By placing your hand on natural stone and using your action to focus, you can feel the presence of any natural gems or metals within 100 feet of you.