REFERENCE SPECIMENHistorical catalogue reference
Quartz
SiO₂
Silica, glass & industrial applications
Explore material
REFERENCE SPECIMEN · NOT DEPOSIT EVIDENCE
Reference photograph · not deposit evidence. Rob Lavinsky, iRocks.com · CC BY-SA 3.0 · Wikimedia Commons
- Research family
- Industrial minerals
- Reference chemistry
- C
- Crystal system
- Hexagonal
- 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- Historical reference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-GRAPHITE
Revision 1.0 · Technical reference
Material identity
C
Natural crystalline carbon. Flake distribution, gangue and impurities determine possible processing applications.
- Mohs hardness · reference species
- 1–2
- Crystal system
- Hexagonal
Handbook of Mineralogy · Graphite · Graphite (hexagonal polytype). 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 |
|---|---|---|
| Total graphitic carbon (TGC)% dry mass | Validated carbon analysis with a defined graphitic-carbon separation protocol | Not supplied |
| Ash% dry mass | Gravimetry; state ignition conditions | Not supplied |
| Flake-size distributionµm / mass % by fraction | Sieving with retained mass fractions | Not supplied |
| Moisture% as received | Gravimetry; report drying temperature and duration | 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
Related materials
REFERENCE SPECIMEN
MADAGASCAR · GEOLOGICAL CONTEXTHistorical catalogue reference
Mica
Variable; muscovite KAl₂(AlSi₃O₁₀)(OH)₂
Insulation & specialist fillers
Explore materialMADAGASCAR · GEOLOGICAL CONTEXTHistorical catalogue reference
Kaolin
Kaolinite: Al₂Si₂O₅(OH)₄
Ceramics & industrial fillers
Explore material