PRETO CEARA
Allgemeine Informationen
| Trading names | PRETO CEARA, PRETO NOVO |
| Location where found | Jaguarao / Aracoiaba / Ceara |
| Country | Brazil | Coloring | black |
| Grain size | Fine to medium grained |
| Structure | Largely without direction |
| Availability | Is being mined, but is used very seldom. |
Gestein
| Bezeichnung | Diorite |
| Alter | Precambrian |
| Gesteinsgruppe | Abyssal rock |
Technische Eigenschaften
| Polish quality | Polish possible. |
| Suitable for flooring | Suitable |
| Frost resistant | frost resistant |
Technische Daten
| Bulk density | 2,67 t/m³ |
| Pressure resistance | 142,0 MPa |
| Abrasion resistance according to Italian standard | 1,40 |
| Water absorption | 0,28 Gew.-% |
| Porosity | 1,05 Vol.-% |
Mineralbestand
| Plagioclase | 41 % |
| Amphibole | 16 % |
| Pyroxene (augite) | 14 % |
| Biotite mica | 13 % |
| Quarz | 5 % |
INSK – Internationale Naturstein-Kartei
| INSK Number | 28.19 |
feingeschliffen, poliert:
Recommendations for bonding and filling
Productfinder bonding / filling:
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