ID-0011 · Rock & Mineral Identification
Identify Any Rock or Mineral
Rocks, minerals, crystals, and gemstones — snap the specimen and learn what it is and how it formed.
About rock & mineral identification
Spotter identifies rocks, minerals, crystals, and gemstones from a photo, with detail on how they form and where they occur. Whether you picked it up on a hike, a beach, or a riverbed, point your camera and get a starting identification in seconds.
Each result covers the specimen name, its properties, and geographic occurrence. For anything of real value, a jeweler or gemologist should confirm — Spotter is a fast, reliable first identification and learning tool.
For a better identification
- Shoot in good, even light and get close enough to show texture and any crystals.
- Photograph a freshly broken or clean surface when possible.
- Note the color, luster, and whether it feels unusually heavy.
- Where you found it (riverbed, volcanic area, limestone region) is a strong clue.
Field guides
- 6 speciesHow to Identify Common Rocks and Minerals
- 6 speciesRocks and Minerals of Arizona: Identification Guide
- 6 speciesRocks and Minerals of Colorado: Identification Guide
- 6 speciesRocks and Minerals of California: Identification Guide
- 6 speciesRocks and Minerals of North Carolina: Identification Guide
- 6 speciesRocks and Minerals of Michigan: Identification Guide
Field Notes
- How to Identify Diorite (and Tell It From Granite)
- How to Identify a Petoskey Stone (Michigan Fossil Coral)
- How to Identify Gneiss (the Banded Metamorphic Rock)
- How to Identify Shark Teeth on the Beach
- How to Identify Limestone (and Tell It From Other Rocks)
- How to Identify Petrified Wood (Real vs. Fake)
More: Rocks & Minerals, Fossils
How Spotter compares
Rock & Mineral: name it from a photo
Free to download. You get the name, field marks, look-alikes, habitat and safety notes on your phone.
