Bratříkov
- Quarry
- Stone appearance
- Petrographic examination
- Physical properties
- Frost resistance
- Particle size distribution by image analysis
- Chemical and phase composition
- Notes and literature
Chemical composition (XRF)
| Element | Content [%] |
|---|---|
| Na2O | 0,89 |
| MgO | 1,34 |
| Al2O3 | 22,4 |
| SiO2 | 56,5 |
| P2O5 | 0,07 |
| K2O | 5,28 |
| CaO | 0,21 |
| TiO2 | 0,96 |
| Fe2O3 | 8,07 |
Phase composition (XRD)
Diffraction pattern:
Popis difraktogramu:
In železnobrodská slate were found quartz SiO2, clinochloreMg5Al (AlSi3O10) (OH)8, albite Na2O∙Al2O3∙6SiO2, muscovite (K,Na)(Al,Mg,Fe)2(Si3,1Al0,9)O10(OH)2.


