Geode identifier · Experimental
Explore a crystal-lined cavity.
Geodes combine a host rock and an interior lining. We describe each separately from exterior, interior and scale views.
Add 1–5 photos of one specimen
JPEG, PNG or WebP · up to 10 MB each · 30 MB per scan
Optional details you know first-hand
Tell us what you measured yourself, what someone told you, and what a report says — we keep these separate.
Privacy: photos are used only for your scan, location data is removed before upload, and nothing is used for training unless you opt in. Guest scans are deleted after 24 hours.
Features that may help
- Exterior shape and texture
- Lining crystals
- Banding
Common confusions
- Concretions
- Dyed or coated geodes
What a photo can't conclude
- Contents of an unopened geode
- Dye or coatings
Questions
Should I crack it open?
We don't recommend breaking unknown specimens. Some people value intact geodes, and breaking can cause injury.