Datasets:

mp-cmd
/

erebaur-mining-localities

license: cc-by-4.0
pretty_name: Erebaur Gem Mining Localities
language:
  - en
size_categories:
  - n<1K
task_categories:
  - other
tags:
  - gemstones
  - mining
  - geography
  - geospatial
  - diamonds
configs:
  - config_name: default
    data_files:
      - split: train
        path: mining-localities.csv

Erebaur Gem Mining Localities

57 gem mining localities across 31 countries, from the mine map in Chapter 05 of the Erebaur encyclopedia: diamond, corundum (ruby and sapphire), emerald and other gem deposits, with coordinates, the stones produced, operating status as of September 2026 and a coordinate-quality grade.

57 rows, one CSV file: mining-localities.csv (UTF-8, comma-separated, header row).

Attribution

Required wherever the data is reused:

Data: Erebaur (https://erebaur.com), CC BY 4.0

The link goes to the matching page on the site, https://erebaur.com/atlas/. Keep it when you reproduce the line.

Data dictionary

Column	Type	Description
`name`	string	Locality name as used on the map.
`country`	country	Country, English short name.
`iso3`	string	ISO 3166-1 alpha-3 country code.
`lat`	latitude	Latitude in decimal degrees (WGS 84). A mine or nearest-town position; see coordinate_quality.
`lon`	longitude	Longitude in decimal degrees (WGS 84).
`group`	string	Map layer: diamond, corundum, emerald or other.
`stones`	string	Stones the locality produces or produced.
`status`	string	active, artisanal, closed or historic, as of September 2026.
`description`	string	One-line description written for the encyclopedia.
`coordinate_quality`	string	operator_stated: the operator’s own coordinate. published_coordinate: printed in a journal. approximate: a mine or town position, typically good to 0.1 to 0.3 degrees. weak: named in the editorial review as one of the least certain points.
`coordinate_precision_deg`	numeric	Estimated precision in degrees, where the editorial review states one. Empty otherwise.
`notes`	string	What Erebaur’s editorial review records about this locality’s coordinate, status or description. Empty when it records nothing.
`sources`	string	Sources in Chapter 05’s list that are about this locality, separated by " \| ". Otherwise the URL of the chapter’s full source list.
`erebaur_url`	url	The locality selected on the erebaur.com atlas map.

Sources and how they were checked

The chapter was re-sourced in September 2026 against journals, government and intergovernmental bodies and operators’ own disclosures. One source is trade press (MINING.COM, for Koidu), and its row says so.

Coordinates are mine or nearest-town positions. Most were first taken from public gazetteers and are approximations; the editorial review grades the weakest of them, and the coordinate_quality and coordinate_precision_deg columns carry that grading. Karowe uses the operator’s stated coordinate and Zabargad the one printed in Gems & Gemology (Spring 1981). Four points added in September 2026 were located with OpenStreetMap through Nominatim (© OpenStreetMap contributors) and checked against a published distance where one exists, and one (Kollur) is Mindat’s point.

Status is the editorial judgment as of September 2026, from operator disclosures where they exist. The notes column says where a status is judged rather than sourced.

The full source list for the chapter, as published on the site: https://erebaur.com/chapters/mining/#sources

Known limitations

Typical coordinate error is 0.1 to 0.3 degrees, more for the points graded weak. Do not use the points for anything that needs mine-level precision.
Status changes quickly: Ekati, Diavik, Finsch and Koidu all changed in 2025 or 2026. Treat status as a snapshot of September 2026.
The map is a selection of significant localities, not a register of every working. It is capped at 60 points.
Four coordinates come from OpenStreetMap (ODbL 1.0) and one from Mindat; where a value came from a third-party database, that database’s terms continue to apply to it.
Kimberley Process 2025 figures for Lesotho and Tanzania appear to repeat their 2024 values; no production figures are carried here.

License

CC BY 4.0. The license covers Erebaur’s compilation: the selection and arrangement of the rows, the column structure and the descriptive text Erebaur wrote. The underlying facts are not owned by anyone, and the publications listed above keep their own rights. See ../LICENSE.

Citation

Data: Erebaur (https://erebaur.com), CC BY 4.0. Erebaur Gem Mining Localities, compiled from the Erebaur encyclopedia, last reviewed 2026-09-19. https://erebaur.com/atlas/

A machine-readable citation is in CITATION.cff.

Regenerating

These files are generated from the encyclopedia content. Do not edit them by hand: run npm run datasets in the site repository.