variables
identification:
| commercial name: | Rochlitzer Porphyr / Rochlitzer Porphyrtuff / Rochlitzer Marmor |
| petrographic identification: | Rhyolit-Tuff |
| geological formation: | permain |
variables:
| gross weight: | 1,9-2,1 kp/dm3 | pressure strength: | 350-480 kp/cm2 |
| flexual strength: | 85 kp/cm2 | modules of elasticity: | 167000 kp/cm2 |
| resistance to abrasion: | 29,5 cm3 / 50 cm2 | water absorption: | 8-12 Vol% |
| freezing strength: | resistant | aggressive influences: | resistance |
| polishing: | not possible (max. fine honed) |
application area:
| main application area: | historical important building and sculptural material |
| well-known building benchmarks: | Old Town Hall of Leipzig, Grassimuseum Leipzig, mausoleum of Copenhagen |