Optical Microscopy of Stove Tile (1954/421a)
Analysis of: Sample 1 from stove tile (1954/421a)
Object the sample was taken from: stove tile (1954/421a)
Instrument used: polarizing microscope BX51
Analysed by: Martin Hložek
Rock and mineral fragments
Grain type: medium grain| Non-plastic inclusion | Type |
|---|---|
| alkali feldspar | Minerals |
| biotite | Minerals |
| chlorite | Minerals |
| quartz | Minerals |
| muscovite | Minerals |
| aplite | Rocks |
| biotite slate | Rocks |
| greywacke | Rocks |
| mudstone | Rocks |
| quartzite | Rocks |
| metaquartzite | Rocks |
| sandstone | Rocks |
| gneiss | Rocks |
| ferrous sandstone | Rocks |
Binder type: heterogeneous
Grog : Binder: 1:2
Microstructure: parallel
Porosity: 7%
Firing temperature: 900–1000 °C