PFRONDORF
Allgemeine Informationen
| Trading names | PFRONDORF, PFRONDORFER RÄTSANDSTEIN, TÜBINGER SANDSTEIN |
| Location where found | Pfrondorf + Tübingen-Lustnau / Tübingen |
| Country | Germany |
| State | Baden-Wuerttemberg | Coloring | beige |
| Grain size | Fine grained |
| Structure | Largely without direction |
| Availability | No longer being mined! |
Gestein
| Bezeichnung | Sandstone |
| Alter | Triassic |
| Gesteinsgruppe | Sedimentary rocks |
Technische Eigenschaften
| Polish quality | Only fine sanding possible. |
| Suitable for flooring | Hardly suitable as floor covering! Not very abrasion-resistant and difficult to clean! |
| Acid resistant | The stone is resistant to acid under usual circumstances. |
| Frost resistant | frost resistant |
Technische Daten
| Bulk density | 2,31 t/m³ |
| Pressure resistance | 133,0 MPa |
| Abriebfestigkeit | 11,7 cm³/50cm² |
| Bending strength | 13,3 MPa |
| Water absorption | 3,2 Gew.-% |
Mineralbestand
| Quarz | 95 % |
| Rock fragments | 4 % |
| Orthoclase (alkali feldspar) | 1 % |
INSK – Internationale Naturstein-Kartei
| INSK Number old | 6.2.71 |
| INSK Number | 94.18 |
Care information from Möller-Chemie
Stain removal guide:
Recommendations for bonding and filling
Productfinder bonding / filling:
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