Rock ID

Found a strange stone on a hike and nobody can tell you what it is? Photograph it and Rock Identifier ranks the closest matches from a bundled geology catalog, then opens a full specimen profile so you actually learn what you picked up. Most identifier apps ship your photo to a server and hand back one confident-sounding answer. This one works entirely on your device, offline, and shows a ranked list of possible matches with an honest confidence score, plus a clear "no confident match" screen t...