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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.
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
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