MADAGASCAR · GEOLOGICAL CONTEXTHistorical catalogue reference
Nickel
Ni (element reported in assay)
Alloys & battery materials
Explore materialTerra Origins / Material intelligence
Chromium (chromite)
Stainless steel, ferrochrome & refractories
MADAGASCAR GEOLOGICAL CONTEXT · NOT A PHOTO OF THIS MATERIAL
Reference photograph · not deposit evidence. Diorit · CC BY-SA 3.0 · Wikimedia Commons
- Research family
- Metals & critical materials
- Reference chemistry
- FeCr₂O₄ (ideal end-member)
- Crystal system
- Cubic
- Malagasy provenance
- Historical reference
01 / Technical dossier
The material. The evidence.
Reference properties and the analytical work needed to assess this material for industrial use.
TO-REF-CHROMITE
Revision 1.0 · Technical reference
Material identity
FeCr₂O₄ (ideal end-member)
Natural chromite is a spinel solid solution with Fe, Mg, Cr, Al and ferric iron substitutions. Ideal chemistry is not concentrate grade.
- Mohs hardness · reference species
- 5.5
- Crystal system
- Cubic
Handbook of Mineralogy · Chromite · Chromite. Mineral identification constants, not bulk product test results.
Historical catalogue reference
Listed in historical national mineral reporting. This does not establish current production, economic reserves, ownership or commercial availability.
Laboratory characterisation
Parameters to establish on a representative sample. Methods below are analytical routes, not a certified test protocol. No lot-specific result or acceptance limit has been supplied.
| Parameter / reporting unit | Analytical route | Result |
|---|---|---|
| Cr₂O₃% dry mass | Validated XRF or digestion + ICP-OES / ICP-MS; matrix-specific preparation | Not supplied |
| Cr / Fe ratiodimensionless | Calculate from elemental Cr and total Fe on the same analytical basis | Not supplied |
| SiO₂ / Al₂O₃ / MgO% dry mass | Validated XRF or digestion + ICP-OES / ICP-MS; matrix-specific preparation | Not supplied |
| Particle-size distribution (d10 / d50 / d90)µm | Sieving or laser diffraction; report dispersion conditions | Not supplied |
Traceability & certification
- Sample ID & collection date
- Not supplied
- Locality & supplier provenance
- Not supplied
- Sampling protocol & representativeness
- Not supplied
- Laboratory & accreditation scope
- Not supplied
- Certificate of analysis (CoA)
- Not supplied
- Product form, packaging & shelf life
- Not supplied
Handling & safety
Control dust during handling. A material-specific safety data sheet (SDS), exposure assessment and transport classification are required before shipment.
Reference basis
USGS · The Mineral Industry of Madagascar, 2019 (published 2024)
Mineralogical Society of America · Handbook of Mineralogy
Mineral identity and ideal chemical formulas; not Madagascar sample analyses.
Reference sheet only, not a certified product TDS, safety data sheet or certificate of analysis. No purity, grade, origin or supply commitment is certified.
02 / Continue your research
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