Blue Biscaia 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 furnitures
- Additional Names:
- Breccia Blue Quartzite, Azul Biscaia Quartzite
- Finished Surface:
- Polished,Bush Hammered,Tumbled,Brushed,Honed,Split,Machine Cut,Natural Surface,Sandblasted,Combed,Leathered,Water Jet,Chiseled,Pickling
Testing
- Water Absorption:
- 0.1 – 0.25% by weight
- Density:
- 2650 – 2720 kg/m³
- Flexural Strength:
- 15 – 16 MPa
- Compressive Strength:
- 190 – 210 MPa
Description
Blue Biscaia Quartzite from Brazil is an exotic natural quartzite distinguished by a sophisticated blend of deep blue, steel grey, and soft white tones, often arranged in flowing, linear to slightly wavy veining that creates a refined, directional movement across the slab. The overall pattern typically shows medium variation with layered mineral bands and occasional crystalline bursts, giving the stone a strong visual depth and a cool, elegant aesthetic suitable for modern architectural applications.
Texture & Structure: Fine- to medium-grained metamorphic quartzite with a dense, interlocking crystalline structure. The stone is compact, low-porosity, and highly resistant to abrasion, making it suitable for demanding applications.
Hardness & Physical Test Results:
- Mohs hardness: ~7
- Compressive strength: 190–210 MPa
- Flexural strength: 15–16 MPa
- Water absorption: 0.1–0.25% by weight
- Bulk density: 2.65–2.72 g/cm³
Chemical Composition (% by weight):
- SiO₂ (Quartz): 93–97%
- Feldspar: 1–3%
- Mica group minerals (biotite/muscovite): 1–2%
- Iron oxides & trace minerals: <1% (responsible for blue-grey tonal variation)
Mineral Composition (% by weight):
- Quartz (dominant recrystallized structure): 93–97%
- Feldspathic inclusions: 1–3%
- Accessory silicates & mica: 1–2%
- Trace hematite/goethite influencing coloration: <1%
Usage: Ideal for luxury residential and commercial applications including kitchen countertops, bathroom vanities, feature walls, flooring, staircases, reception desks, hotel lobbies, façades, and exterior cladding due to its durability and low water absorption.
Maintenance: Requires minimal maintenance. Recommended sealing after installation and periodic resealing depending on usage intensity. Clean using pH-neutral stone cleaners; avoid acidic or abrasive products to preserve surface integrity and color depth.
Surface Finish Options: Polished, honed, leathered, brushed, flamed, sandblasted, tumbled, and waterjet-cut finishes. Each finish enhances different aspects of the stone’s tonal contrast and veining clarity, from high-gloss reflective surfaces to natural matte textures. Blue Biscaia Quartzite is valued for its balance of strength, elegance, and natural movement, making it a premium material for high-end architectural and design projects.



















