PRETO ARRONCHES
Allgemeine Informationen
| Trading names | PRETO ARRONCHES, PRETO EVORA, CINZENTO AZEVICHE, GABBRODIORITO DE ARRONCHES, NEGRO ARRONCHES |
| Location where found | Monte das Escarninhas / Arronches/ St. Eulalia |
| Country | Portugal | Coloring | dark grey |
| Grain size | Fine grained |
| Structure | Largely without direction |
| Availability | Is being mined, but is used very seldom. |
Gestein
| Bezeichnung | Diorite |
| Alter | Carboniferous |
| Gesteinsgruppe | Abyssal rock |
Technische Eigenschaften
| Polish quality | Polish possible. |
| Polish durability | The polish is durable for exterior use. |
| Suitable for flooring | Suitable |
| Acid resistant | The stone is resistant to acid under usual circumstances. |
| Frost resistant | frost resistant |
Technische Daten
| Bulk density | 2,841 t/m³ |
| Pressure resistance | 166,0 MPa |
| Druckfestigkeit Frost | 182,2 MPa |
| Abrasion resistance according to Italian standard | 0,5 |
| Bending strength | 22,6 MPa |
| Water absorption | 0,14 Gew.-% |
| Porosity | 0,39 Vol.-% |
| Thermische Dehnung | 0,63 mm/m/100K |
Mineralbestand
| Plagioclase | 58 % |
| Amphibole | 25 % |
| Biotite mica | 12 % |
| Quarz | 4 % |
INSK – Internationale Naturstein-Kartei
| INSK Number | 26.7 |
Care information from Möller-Chemie
Stain removal guide:
Recommendations for bonding and filling
Productfinder bonding / filling:
Sign up for our free live webinars
https://stein.akemi.de/en/current-topics/webinars/
Application videos
https://www.youtube.com/c/AkemiDeutschland
* Alle Angaben ohne Gewähr