| SiO2 | 72.0% |
| Na2O | 13.8% |
| CaO | 9.0% |
| MgO | 4.0% |
| Al2O3 | 1.0% |
| K2O, Fe2O3 | 0.2% |
| (Slight deviations are possible. PbO free <0.01%). | |
| Hardness according to Mohs | ≥6 |
| Elasticity module, GPa | 63 |
| Specific weight, kg/dm3 | 2.5 |
| Bulk weight, kg/dm3 | 1.5 |
| Abrasion after 9h grinding* | 29 weight % |
Click to download PDF: Jencons Solid Soda Glass Balls Brochure
Click to download PSD: Ballotini 4504 High Resolution Image
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