Open Data

The full dataset behind lanthanides.io is open. Every price carries its source; nothing is fabricated or interpolated. The data lives as versioned files in git, and is served here as JSON and CSV exports.

See any record in context on its element page, or the controls that shape the market in the Regulatory Tracker.

Price records: 238
Elements: 31
Price observations: 285
Regulatory notices: 5
Curated sources: 5

Views of the dataset

Views derived from the data below. Each states its own sample size; nothing is drawn that the data cannot support. (Price trend lines live on each element page and appear only once a tier has enough distinct observation days. See methodology.)

Coverage by element

How much price data backs each tracked element. Thin coverage is shown, not hidden; transparency about data density is part of the provenance-first model. Each tile links to the element.

La8 Ce9 Pr5 Nd10 Sm6 Y5 Sc12 Eu4 Gd13 Tb12 Dy10 Ho23 Er6 Tm14 Yb4 Lu12 Te17 V16 Sb4 W4 Bi3 Mo4 Zr3 Ta2 Nb4 Co4 Li2 Ga9 Ge5 Se3 In5

31 elementsRich 4Moderate 19Sparse 8None 0· number on each tile = observations

Control by category

Where active Chinese export control concentrates across the four material classes.

Light Rare Earths		5 / 7
Heavy Rare Earths		9 / 9
Strategic & Rare Metals		5 / 11
Semiconductor Metals		3 / 4

Bars show the share of each category currently under active Chinese export control (22 of 31 tracked elements). Control is concentrated in the rare earths. The count beside each bar is the exact figure (controlled / total in the category).

Retail premium leaderboard

The markup small-quantity buyers pay over commodity pricing: latest retail reference ÷ latest bulk benchmark, per element.

				Basis
Ce Cerium	$18,382	$3	6127.3×	metal / oxide
Li Lithium	$6,500	$10	650.0×	metal / compound
Nd Neodymium	$13,054	$80	163.1×	metal / metal
Lu Lutetium	$66,700	$707	94.3×	metal / oxide
V Vanadium	$402	$12	33.5×	metal / oxide
Ta Tantalum	$2,800	$280	10.0×	metal / metal
Tm Thulium	$1,796	$180	9.9×	metal / oxide
Ho Holmium	$2,400	$270	8.8×	metal / metal
Co Cobalt	$146	$24	6.0×	metal / metal
Nb Niobium	$351	$70	5.0×	metal / metal
Ga Gallium	$120	$200	0.6×	metal / metal
Te Tellurium	$243	$1,100	0.2×	metal / metal

Latest retail reference ÷ latest bulk benchmark, ranked by premium. The Basis column shows the form each side is quoted in. A metal-retail ÷ oxide-bulk ratio is not a like-for-like spread. Click a column to sort.

Downloads

Price records (JSON)

238 records · application/jsonThe canonical price store: every sourced, normalised USD/kg record with seller, date, form, purity, quantity, and verification status.

Price records (CSV)

238 rows · text/csvThe same dataset as a flat spreadsheet table. One row per record, every field a column.

Price fluctuations (JSON)

Per-element windows · application/jsonPre-computed price-change windows (7d/30d/90d/1y/all-time) per element and tier, with confidence and observation counts.

Regulatory tracker: 5 notices

Structured page · CC BY 4.0 DatasetEvery Chinese export-control announcement affecting these elements, with effective dates, affected elements, and current status. Sourced from _data/regulatory/*.yml.

Source of Truth

The exports above are generated from the versioned reference data in the repository’s _data/ directory. The export API regenerates from those files on every build, so a download can never drift from what the site renders. Browse or fork the raw data:

_data/ on GitHub →Repository →

Licence & Attribution

The dataset is licensed under Creative Commons Attribution 4.0 (CC BY 4.0). You are free to share and adapt it for any purpose, including commercially, provided you give appropriate credit. The site code is licensed MIT.

Suggested citation: lanthanides.io Strategic Materials Ledger, price-records dataset (CC BY 4.0), www.lanthanides.io/data/. See Methodology for how each value is collected, normalised, and verified.