Importing country: Sri Lanka
Silica (SiO₂)-based minerals, including quartz, tridymite, and cristobalite, exhibit diverse crystal structures and are characterized by high hardness, excellent chemical resistance, low thermal expansion, and superior electrical insulation properties. These attributes make silica minerals essential across various industries, including construction, electronics, and chemical manufacturing.
Mineral Introduction
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Silica
Silica
Note:
LOI – Loss on ignition
n.d. – Not detected
The analysis was performed on the powdered sample dried at 105°C.
Results of Chemical Analysis
| Constituents | Results (µS/cm) | Test method |
|---|---|---|
| Conductivity | 70.77 | Electrometry |
| Contents % (w/w) | ||
| Silica as SiO₂ | 99.95 | GSMB/AL/MM/01 ** |
| Loss on ignition | 0.01 | Gravimetry |
| Contents (mg/Kg) | ||
| Iron as Fe | 21 | IS 1917(part5):1992 |
| Aluminum as Al | 53 | Acid Digestion and Atomic Absorption Spectrophotometry |
| Potassium as K | 7 | |
| Sodium as Na | 41 | |
| Calcium as Ca | 50 | |
| Magnesium as Mg | 8 | |
| Manganese as Mn | 2 | |
| Phosphorus as P | <2 | Acid Digestion and UV/VIS Spectrophotometry |
| Titanium as Ti | <5 | |
Note :
* Accredited parameters.
** Validated method based on Jeffery, P. G., and D. Hutchison. Chemical Methods of Rock Analysis, 3rd ed., Pergamon Press, 1983, pages 292–293.
The analysis was performed on the powdered sample dried at 105°–110°C.
