Company » Quartzite Santa Cruz: Specifications

Tests Description Results
- Hardness (Mohs) 7
NBR 12766 Water Absorption
Specific Weight
Porosity
0,28%
2,63 g/dm³
0,73%
ASTMC241 Abrasion Resistence
Abrasion per Area
68,653cm³
0,004cm³/cm²
Strenght under load:
NBR 12767
ASTM C880-98
Flexural Strenght
Compression Strenght
33,1 MPa
73,9 MPa
NBR 12769 Frost Resistance Aprovado
NBR 13818/Anexo H Reaction with Chemicals None

Technical Data

The high metamorphic grade of the Santa Cruz Quartzite indicates, laboratory tests confirm its resistance to frost, salt and chemicals, acid rain and air pollution. The highly crystalline texture of the Santa Cruz Quartzite indicates, laboratory tests confirm its resistance to abrasion, compression, bending and skidding.

In summary, the Santa Cruz Quartzite maintains its strength, the unique colors and its elegance forever and can be used in internal and external areas, including walls, floors, patios, porches, decks, steps, swimming pools and landscapes.

Santa Cruz Quartzite
Mineral Pérola
(Pearl White)
Coral
(Pink)
Caju
(Multicolor)
Aurora
(Red)
Quartz 80% 80% 80% 88%
Muscovite 20% 20% 15% 10%
Limonite - - 5% -
Iron Oxide - - - 2%
Tourmaline Tr Tr - Tr
Stone Classification Muscovite
Quartzite
Muscovite
Quartzite
Muscovite
Quartzite
with Limonite
Ferruginous
Quartzite

Mineral Composition

The Santa Cruz Quartzite comprises the following four distinct color varieties: Pérola (white), Coral (pink), Cajú (multicolor), and Aurora (red). Petrographic analyses (see table below) demonstrate that the four distinct color types have essentially the same mineral composition, i.e. 80-88% quartz and 10-20% muscovite. The different colors are due to the varying amount of iron oxides (0-5%).

All four colors can be delivered in various sizes and thickness as flagstones, tiles with sawn edges, steps, and paving stones.

Orex Mineração

Rua São Vicente, 45, Sala 1, CIA II, Simões Filho - Bahia - Brasil | CEP: 43700-000 | Tel/Fax: 55 71 3374-7851 | orex@orex.com.br