Why Visual Inspection Falls Short
Relying on colour, luster, or density to identify minerals is risky. Weathering masks metal‑bearing phases and many gangue minerals imitate valuable ones. A misplaced bet on geology can mean wasted haulage, reagent overuse, or penalties at the smelter.
How X‑ray Fluorescence (XRF) Works
- Excitation – A primary X‑ray beam strikes the sample.
- Emission – Inner‑shell electrons are ejected; outer electrons fall inward, releasing element‑specific fluorescent photons.
- Detection & Quantification – A silicon‑drift detector converts those photons into a spectrum. Calibrated software reports each element’s weight‑percent in seconds, without destroying the sample.
Because every element above sodium (Na) has a unique fluorescent signature, XRF spans everything from alumina to zinc—even trace levels.
Case Study: Rapid Iron‑Ore Screening
| Element | Concentration (wt %) |
|---|---|
| Calcium | 95 % |
| Iron | 5 % |
A handheld XRF scan flagged this “iron‑rich” rock as mostly limestone, preventing unnecessary crushing and transport. Detecting iron at just five percent illustrates XRF’s sensitivity—crucial for:
- Grade control in open‑pit and underground mines
- Blend optimisation for sinter or pellet feed
- Early rejection of deleterious elements (e.g., P, S, As)
- Metallurgical accounting in hydromet and pyromet circuits
Benefits of XRF for Mining & Recycling Professionals
| Benefit | Impact on Operations |
|---|---|
| Real‑time data (1‑10 s) | Faster decisions, reduced downtime |
| Non‑destructive | Retain sample for further tests |
| Portable & in‑situ | Analyse core, muck piles, or conveyor streams |
| Low operating cost | No reagents, minimal consumables |
| Regulatory compliance | Demonstrate due diligence for ISO 17025 & ESG audits |
Ready to Optimise Your Ore or Scrap Stream?
📧 application@lla.de | ☎️ +49 (0)30 4091‑2840
Schedule a free consultation. Discover how X‑ray fluorescence can unlock hidden value and ensure process reliability—from exploration to final assay.
