Rock Identifier is an AI-powered tool for rock identification and collection. Snap or upload photos to classify rocks (sedimentary/igneous/metamorphic) with details on minerals & formation. Features 2000+ rock/mineral entries (hardness/gloss/cleavage), filter by color/texture/region, and HD magnifier mode. Auto-logs discovery time/location (optional), builds a personal rock collection, and supports custom tags. Extras: Mohs hardness tester (scratch simulation), black-and-white filter, and voice memos.