INDUSTRY FIELD GUIDE
Iron ore grade-basis records for AI evaluation
An ore sample and a concentrate report can use similar field names while describing different materials.
NAICS 212210 · Iron Ore Mining
An ore sample and a concentrate report can use similar field names while describing different materials. USGS publishes iron ore statistics and geochemical data-quality guidance. A mine can demonstrate a basis check with artificial assays and product labels. USGS iron ore data release · USGS geochemical data quality primer
Create two practice samples and label material, measurement basis, units and report revision. Put a concentrate figure next to an ore figure with an unspecified basis. Ask which comparisons are supported and which require a reviewer. Add a corrected sample association that does not change the measurement.
Keep actual assays, grades, product specifications, locations, client contracts, operating and processing information private. Use independently written mock records and no extraction or process task.
Original Fiund exercise
Material identity and reporting basis must both survive an assay join
The invented packet contains an ore specimen, a concentrate specimen and a corrected sample association. No actual grade, processing relationship or ore valuation is represented.
| Record | Source | What it records |
|---|---|---|
| IO1 | Practice assay report O-1 | Specimen X: material ore; field F=24 percent; reporting basis unspecified. |
| IO2 | Practice assay report C-1 | Specimen Y: material concentrate; F=61 percent; basis dry. |
| IO3 | Association correction | O-1's specimen identifier is X2, replacing X. The correction changes no value, material label or reporting basis. |
Question for the model
What does the correction establish, and is a direct grade comparison or enrichment calculation supported between X2 and Y?
Show the reference answer and checks
IO3 changes O-1's specimen association to X2 while retaining its ore label, 24 percent value and unspecified basis. IO2 concerns a concentrate on a dry basis. The packet supplies neither a common basis nor a documented feed-to-product relationship. A direct like-for-like grade comparison or enrichment calculation would therefore add assumptions beyond the records.
- Treating a sample-identifier correction as a newly measured assay.
- Calculating a processing improvement from ore and concentrate values with unmatched basis and no process lineage.
Fields to preserve
- Material class
- Separates an ore specimen from a concentrate specimen.
- Reporting basis
- Retains the missing basis rather than silently assuming dry mass.
- Corrected identifier and prior alias
- Maintains traceability through the association change.
- Feed-to-product relationship status
- Makes a missing processing link explicit.
Test another case
Give X2 a verified dry-basis statement but no connection to Y. The model may resolve comparability of the stated measure while still declining to claim that Y was produced from X2.
Keep actual grades, reserves, product specifications, locations, contracts and processing information private. All records here are independently authored fiction.
Discuss a contribution
Describe the sources you control, the task they could support and what has already been checked. Use the existing-data assessment for an archive or the collection brief for a new recording project. The contributor agreement defines Fiund’s licensing authority and compensation. A guide or fictional exercise does not establish an accepted collection or a sale.