Silverstone Quartzite

About
Item Details
- Material Type:
- Quartzite
- Origin:
Brazil - Recommended Usage:
- kitchen and bathroom countertop, wash basins, building stone, ornamental stone, stairs, interior wall and floor applications, mosaic, water-jet pattern, wall panels, table tops, balustrades, columns, fireplaces, luxury furniture
- Additional Names:
- Silverstone
- Finished Surface:
- Polished,Bush Hammered,Tumbled,Brushed,Honed,Split,Machine Cut,Natural Surface,Sandblasted,Combed,Leathered,Water Jet,Chiseled,Pickling
Testing
- Water Absorption:
- 0.15 - 0.35%
- Density:
- 2660 - 2710 kg/m³
- Flexural Strength:
- 13 -15 MPa
- Compressive Strength:
- 150 - 160 MPa
Description
Silverstone Quartzite is a distinctive Brazilian natural quartzite recognized for its rugged brecciated appearance and sophisticated earthy color palette. Unlike traditional quartzites with uniform veining, Silverstone Quartzite displays a dramatic conglomerate-style structure composed of large angular mineral fragments in shades of light grey, creamy white, and pale beige tightly compacted within a finer-grained matrix. The matrix often contains sandy crystalline textures enriched with subtle tan, light brown, and rusty-orange mineral accents, creating a striking mosaic or terrazzo-like visual effect with strong natural depth and movement.
Texture & Pattern: Coarse-grained brecciated quartzite with a dense metamorphic structure. The stone features large flat crystal fragments and irregular mineral clasts embedded within a lighter crystalline matrix, creating high visual contrast and an organic fragmented pattern. Its surface texture varies from smooth crystalline areas to subtly rugged mineral transitions, enhancing its natural architectural character.
Mineralogical Composition (% by weight):
- Quartz (SiO₂): 82–92%
- Feldspar: 3–8%
- Mica & accessory minerals: 3–8%
Chemical Composition (% by weight):
- SiO₂: 82–92%
- Al₂O₃: 2–5%
- Fe₂O₃: 0.5–3%
- Trace oxides (K₂O, Na₂O, CaO): <3%
Physical & Mechanical Properties:
- Apparent Density: 2.66–2.71 g/cm³
- Water Absorption: 0.15–0.35%
- Compressive Strength: 150–160 MPa
- Flexural Strength: 13–15 MPa
- Mohs Hardness: 6.5–7
- Abrasion Resistance: High
Surface Finish Options: Polished, honed, leathered, brushed, sandblasted, flamed, and machine-cut finishes. Polished surfaces enhance crystalline depth and contrast, while leathered and brushed finishes emphasize the stone’s rugged natural texture.
Applications: Luxury flooring, wall cladding, countertops, kitchen islands, staircases, fireplace surrounds, hotel lobbies, feature walls, commercial interiors, and exterior architectural projects.
Maintenance: Low porosity quartzite requiring periodic sealing for stain resistance. Clean using pH-neutral stone cleaners and avoid acidic or abrasive products to preserve surface integrity and natural coloration.



















