Lithotheque by GeoStratum
A geological field notebook designed for ownership, speed, and scientific
confidence.
Capture, enrich, and preserve geological observations with a workflow engineered for offline reality and
controlled AI usage.
Turn your smartphone into a geological field assistant.
Lithotheque is the professional application designed for geologists, Earth science students,
paleontologists, and mineralogy enthusiasts. Replace your paper notebook, compass, and maps with
a complete, secure, fully offline digital solution.
CORE FEATURES:
01
Mapping & Geolocation
- Specialized basemaps: Access global geological maps
(Macrostrat) and French maps (BRGM / InfoTerre).
- Offline mode: Download and cache map tiles to work in
remote areas without any internet connection.
- Geolocation: Automatic GPS coordinate capture
(Latitude, Longitude, Altitude) and address conversion.
02
Structural Measurement Tools
- Integrated compass & clinometer: Instantly measure dip
and strike/azimuth directly on outcrops.
- Stereonet: Visualize structural measurements on Schmidt
or Wulff diagrams and compute mean vectors.
- Augmented reality (AR): Locate sampling points and visualize
distances/orientations in real time through the camera.
03
Digital Field Notebook
- Detailed records: Capture lithology, stratigraphy
(integrated ICS chronostratigraphic scale), texture, minerals, fossils, and HCl tests.
- Photos & sketches: Take photos and annotate them with
sketches directly in the app.
- Field checklist: Never leave without essential gear
(hammer, hand lens, PPE) thanks to the built-in checklist.
04
Advanced Artificial Intelligence
- Local AI (100% private and offline): Use visual recognition
and voice dictation without sending data online.
- Scale detection: AI automatically checks whether a scale reference
(coin, hammer, pen) is present in sample photos.
- Optional cloud assistant: Connect your Gemini API key to enrich
descriptions and geological context.
05
Exports & Reports
- Standard formats: Export to CSV, GeoJSON, GPX, KML,
and GeoPackage (GPKG) for QGIS, ArcGIS, or Google Earth.
- PDF reports: Automatically generate printable PDF sheets
from your observations.
- ZIP backup: Archive all your data and images into a
portable ZIP file.
06
Privacy & Security
- Local-first: Your data stays on your device.
No account creation required.
- Encryption: Your personal API keys are protected
with AES-256.
Whether you work in mapping, sedimentology, metamorphism, or sample collection, Lithotheque supports
you from the lab to the most remote field locations.
Compliance and Transparency
Read the complete multilingual privacy and legal notice prepared for
platform compliance and scientific users.
Open the full Privacy
Policy
Lithotheque
GeoStratum