THE QUARRY | Geovalor 1
OPENING | 2018
AREA | 103 Hectares
TYPE | Granite
STONE NAMES | Black Jade & Black Turtle
LOCATION | Quihita, Chibia, Huíla, Angola
PRODUCTION | 2000 m³/month
The rock extracted namely “Black Jade” is a melanocratic rock with a dark grey hue, containing dispersed black crystals of centimetric size. It has a granular, phaneritic texture, with fine to medium grains. The constituent minerals generally have anhedral to subhedral grain shapes, some with a prismatic tendency, without lineations, fissures, pores, or cavities. The rock does not exhibit any type of orientation, foliation, schistosity, or apparent tectonic deformation.
It is an intrusive igneous rock (plutonic) mainly composed of non-equidimensional grains of pyroxenes and plagioclases, with a holocrystalline, phaneritic texture, non-equigranular, with medium to coarse grains, and a hypidiomorphic tendency.
The quarry operation results in different types of rock:
- Dimensional Blocks
- Semi-blocks (kerbs and paving cubes)
- Waste Rock (aggregates)
The quarry is equipped with several machines, namely:
- COFESEG Double Hammer Driller (3)
- SPYDER MP100 OSM Three Hammer Driller (2)
- CATERPILLAR 730 Articulated Dumper
- VOLVO A30 Articulated Dumper
- CATERPILLAR 336 Hydraulic Excavator
- CATERPILLAR 349 Hydraulic Excavator
- HITACHI 350 Hydraulic Excavator
- KOMATSU WA600 Loader (2)
- CATERPILLAR 988B Loader
- HUADA 75HP Wire Machines (8)
- FRAVIZEL Wire Machine
- PELLEGRINI Wire Machines (5)
- FRAVIZEL Crawler Deep Hole Driller (2)
- FRAVIZEL Stationary Deep Hole Driller (2)
- COFESEG Deep Hole Driller
- JCB Backhoe Loader (2)
