GEOGRAPHIC LOCALIZATION
| PROVINCE | Tarragona |
| TOWNSHIP | Ulldecona |
MACROSCOPIC DESCRIPTION
Fine grain rock, dark sand colour with some veins of clays.
MINERAL COMPOSITION
| ESSENTIAL MINERALS | ACCESORY MINERALS |
| Calcite. | Quartz, clay minerals. |
MICROSCOPIC DESCRIPTION
Rock with a high quantity of fossils in a clayey and calcitic matrix. In some areas the calcite is filling voids and veins (in this cases it has a bigger size).
PHYSICO-MECHANICAL PROPERTIES
| BULK SPECIFIC GRAVITY | 2,65 g/cm3 |
| APPARENT POROSITY | 0,50% |
| ABSORPTION COEFFICIENT | 0,55% |
| COMPRESSION STRENGTH | 980 Kg/cm2 |
| BENDING STRENGTH | 274 Kg/cm2 |
| C. STRENGTH AFTER FREEZING TEST | 972 Kg/cm2 |
| FRICTIONAL WEAR TEST | 2,80 mm |
| IMPACT TEST | 45 cm |
