# Source Review

## Currently used by Lux

Lux currently uses:

- `lux/data/seed/lux_seed_library.json` in the `lux` repo.
- Synthetic libraries generated inside `lux.experiments`.

No measured external mineral database is currently ingested into the Lux
matching pipeline.

## First measured source

Use USGS Spectral Library Version 7 first. It has the best combination of
scientific quality, broad mineral/material coverage, stable citation, public
domain status, and online text exports.

## Sources that need care

- ECOSTRESS/JPL: public download, unclear redistribution for Lux because of the
  visible Caltech all-rights-reserved notice.
- RELAB: useful but noncommercial restriction conflicts with a commercial
  Luxnode default bundle.
- RRUFF: scientifically excellent for Raman/IR/XRD minerals; request permission
  or locate explicit redistribution terms before mirroring.
- NIST ASD: use live query/cached user-side adapter for element lines, not a
  mirrored dataset.