INDUSTRY FIELD GUIDE
Crushed stone product classification data for AI
A product card can describe a rock type, a size category and an application.
NAICS 212319 · Other Crushed and Broken Stone Mining and Quarrying
A product card can describe a rock type, a size category and an application. None is a substitute for the others. USGS publishes aggregates statistics by type and use. An operator can test whether an assistant preserves those distinctions in an independently written sample. USGS aggregates series by type and end use
Invent two products from the same practice material with different declared sizes. Give one an intended use and the other an unresolved label. Ask which class is documented and what cannot be inferred from it. Include a newer catalog entry for a different product to test version matching. Keep application advice outside the task.
Use no actual product specifications, quarry locations, customer records, business volumes, or proprietary grading data. Use mock records and an independent answer key.
Describe a classification records sample
Original Fiund exercise
Rock type, size category and intended use answer different questions
A fictional stone catalog tests whether an assistant can preserve three separate classification axes. Product names and classes are invented rather than commercial specifications.
| Record | Source | What it records |
|---|---|---|
| SC1 | Catalog card Alpha, revision 3 | Material: granite. Declared size category: C. Intended use: practice display bed. |
| SC2 | Catalog card Beta, revision 1 | Material: granite. Size category: D. Intended use: unrecorded. |
| SC3 | New catalog card Gamma, revision 7 | Material: limestone. Size category: C. No replacement relationship to Alpha or Beta. |
Question for the model
Which attributes are documented for Beta, and can its use or size be supplied from Alpha or the newer Gamma card?
Show the reference answer and checks
SC2 directly documents Beta as granite in size category D, with intended use unrecorded. Alpha shares the rock type but has a different product identity and size category. Gamma is newer but concerns another product and material. Neither supplies Beta's missing use, and Gamma's category C does not override Beta's category D. No suitability recommendation follows from the catalog labels.
- Inferring the same application for all products labeled granite.
- Using the highest revision number across unrelated product cards as a global replacement.
Fields to preserve
- Product identity
- Makes revisions specific to an item.
- Material classification
- Records the declared rock type independently of size.
- Declared size category
- Avoids turning a use description into a grading claim.
- Intended-use status
- Preserves the difference between a stated application and an unknown one.
Test another case
Add a valid Beta revision that changes only its intended use. Require a field-by-field response retaining the unchanged material and size rather than copying the entire Alpha card.
Do not publish real product specifications, grading data, customer applications or quarry locations. The fictional catalog is an interpretation task, not material-selection advice.
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.