Material
Penouta tin-recovery slag
The slag left after tin was recovered from Penouta mine tailings, supplied by the company that produced it. Columbotantalite is among the most abundant minerals it carries, so the niobium and tantalum discarded with the tin residue are what this chain begins from. Ground below 90 micrometres before leaching.
Classification
- material class
- SECONDARY_MATERIAL
- physical form
- SLAG
- primary commodity entity id
- entity:niobium-commodity
How this record is known
- 1
- Settled consensus
- Cited as the accepted position of the discipline.
1 of 1 claims on this page cite at least one registered source. Counts describe how each statement is known, not how likely it is to be true.
What Lithoen records
Each claim states how it is known and cites its evidence.
EstablishedFeed identity: slag from tin recovery from Penouta mine tailings, Galicia, Spain, supplied by the producer; columbotantalite among the most abundant minerals; ground below 90 micrometres before leaching.
Reported for this deposit
The slag left after tin was recovered from Penouta mine tailings carries niobium and tantalum, because columbotantalite is among the most abundant minerals in the ore the tin came from and is discarded with the tin residue.
- assertion basis: SOURCE_REPORTED
Evidence support: Supported by the cited evidence · one source
Evidence: Rodríguez 2020 · Peer-reviewed
Record last updated 2026-09-11. Corrections follow the published corrections policy; superseded claims are retained, never silently edited.