Overview
Zinnwaldite occurs as associated mineralization in tin-tungsten veins. Its Li₂O grade is lower than that of lepidolite, but it can be recovered through existing mining and processing infrastructure. It suits regional supply as a supplemental feedstock, with iron, fluorine and sulfur input requiring careful assessment.
- Li₂O 1.5–2.5%
- Can be developed alongside tin-tungsten operations
- Fe/F effects on conversion must be assessed
Technical data
| Item | Typical value |
|---|---|
| Li₂O / % | 1.5–2.5 |
| Rb₂O / % | 0.4–0.8 |
| F / % | 4–6 |
| Fe₂O₃ / % | 2–5 |
| SiO₂ / % | 45–55 |
| Al₂O₃ / % | 20–26 |
| Moisture / % max | 3.0 |
Mineralogy fluctuates considerably; MLA/XRD phase analysis is recommended for each lot.
Reference standards
Standards and values are typical references. Supply is governed by the agreed technical protocol and the batch COA.
Main applications
Packaging and storage
Packaging
1 t bulk bags or bulk.
Storage
Store dry.
Related products
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Lithium Sulfate
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