REFERENCE SPECIMENHistorical catalogue reference
Graphite
C
Carbon materials & battery anodes
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Terra Origins / Material intelligence
Quartz
Silica, glass & industrial applications
REFERENCE SPECIMEN · NOT DEPOSIT EVIDENCE
Reference photograph · not deposit evidence. JJ Harrison · CC BY-SA 2.5 · Wikimedia Commons
- Research family
- Industrial minerals
- Reference chemistry
- SiO₂
- Crystal system
- Trigonal
- 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- Historical reference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-QUARTZ
Revision 1.0 · Technical reference
Material identity
SiO₂
Crystalline silica. Mineral identity alone does not establish high-purity, photovoltaic or semiconductor suitability.
- Mohs hardness · reference species
- 7
- Crystal system
- Trigonal
Handbook of Mineralogy · Quartz · Quartz. 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 |
|---|---|---|
| SiO₂% dry mass | Validated XRF or digestion + ICP-OES / ICP-MS; matrix-specific preparation | Not supplied |
| Al / Fe / Ti / B / Limg/kg | Validated XRF or digestion + ICP-OES / ICP-MS; matrix-specific preparation | Not supplied |
| Mineral phases and proportionsphase identification / % | X-ray diffraction (XRD); quantify with a validated method | 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
Respirable crystalline silica is a serious inhalation hazard. Control dust and obtain an SDS and occupational exposure assessment.
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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