Floors
High-traffic floors in lobbies, halls, and corporate spaces — high mechanical strength.
The rarest blue among stones —
waves of sky crossed by sand and gold.
Azul Macaúbas is a Brazilian quartzite of rare blue — from sky to deep denim — formed in wavy layers that alternate white and pearl-grey bands with fine golden veins. A massive structure, fine-to-medium granulation, and an essentially quartz matrix: the basis for high hardness and the serene brilliance of stones formed under high pressure.
It is an exceptional material, for projects that want an unforgettable focal point. It pairs beautifully with warm woods, brass, whites, and greige neutrals — taking center stage on a wall, island, or fireplace. Under natural light, the blue gains the depth of water.
Shader Balls · polished finish
Every Azul Macaúbas slab carries the chromatic vocabulary nature spent millions of years writing — from deep navy to the pearl white of its bands, crossed by fine golden veins.
High-traffic floors in lobbies, halls, and corporate spaces — high mechanical strength.
Feature walls, islands, tables, and panels — a scale that showcases the veins.
Bathrooms, powder rooms, and kitchens — low absorption (< 1%) with proper sealing.
Façades and patios — a K coefficient near 1 ensures stability against weathering.
Each Azul Macaúbas slab carries an unrepeatable signature. Our intent is to inspire new readings of color and expand the vocabulary of combinations in kitchens, living rooms, bathrooms, and façades.
For use in presentations, moodboards, and renderings.
Quartzite (metamorphic rock) with a blue background, white bands, and golden veins. The full technological characterization — following the Brazilian standards ABNT NBR 12.766/92, NBR 12.767/92, and NBR 12.768/92 — is being finalized and is available on request. The values below are qualitative and typical of quartzites; request the official report using the button at the end.
Macroscopically: a blue background ranging from sky to deep denim, arranged in wavy layers with white and pearl-grey bands and fine golden veins. No visible cavities; weathering virtually absent. Microscopically (typical of the group): an essentially quartz matrix, with accessory minerals responsible for the blue color and the golden filaments — the combination behind the singular color and the brilliance of polished surfaces.
Quartzites are characterized by low porosity and absorption: good behavior predictability, optimal response to sealers, and consistent performance in wet areas with proper specification and maintenance. Azul Macaúbas's specific values will be confirmed in the official report, currently being finalized.
Given the Mohs hardness of quartzites (~7), Azul Macaúbas sits well above the requirements for slabs, floors, and high-demand claddings. For relevant spans, cantilevered countertops, or freestanding steps, the final decision rests with the engineer of record, considering thickness, layout, supports, and reinforcements.
A K coefficient near 1 indicates that the material preserves virtually all of its strength after freeze/thaw cycles — a quality desirable for ventilated façades, patios, pools, and exposed claddings. The low linear thermal expansion further reinforces dimensional stability in façade applications.
Qualitative values typical of quartzites, presented while Azul Macaúbas's official report is being finalized. Validation of structural design and fastening by the engineer of record is always recommended, taking into account natural variations between batches and slabs.
Azul Macaúbas is a quartzite: a natural stone with Mohs hardness 7, highly scratch-resistant and low in porosity. Because it is natural — not engineered quartz — it needs periodic sealing and a gentle cleaning routine to keep its shine for years.
A soft microfiber cloth or non-abrasive sponge, warm water, and neutral detergent. Always dry after cleaning and wipe up spills right away.
Seal with a quality water-repellent, reapplied every 6 months to 2 years depending on use — the barrier that repels liquids and eases cleaning.
Heat-resistant, but thermal shock can cause micro-cracks. Always use trivets — never rest a hot pan directly on the stone.
Don't cut directly on the surface — it dulls both the shine and your knives. Use a cutting board and avoid dropping heavy objects.
After installation, wait about 24h before using the surface (curing of adhesives and sealants). Always check the instructions from your quartzite's manufacturer and the fabricator responsible for specific guidance.
Receive a physical sample, schedule a showroom visit, or speak with a Milgran specialist to clarify any technical questions about the material.
"Some stones decorate a room. Azul Macaúbas redefines it: it brings the sky and the water into architecture."
— Milgran Curation