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Quartzites

Bronzite

Bronzite stands out for its unique formation, around 2.8 to 2.5 billion years ago, when the first life forms transformed the atmosphere by releasing oxygen through photosynthesis. This process caused iron to react with seawater, forming oxides that were deposited on the ocean floor in layers of iron and silica.

Over the course of countless geological events, during the evolution of the planet, the material was moved and subjected to metamorphism processes, resulting in a rock of high hardness, with striking colors due to the presence of iron.

Vintage Bronzite Quartzite, found in Bahia, is a sophisticated and durable choice for design and architecture projects.

Finishes

Polished

Brushed

Honed

Applications

Indoor Flooring

Internal Walls

Kitchen Countertops

Table Tops

Bathrooms

External Fireplace Coating

Panels

Facades

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Category

Quartzites

Petrographic Analysis

Formação Ferrífera Bandada Quartzo microcristalino e cristalino (55%), Magnetita (15%), Goetita (15%) Hematita (12%), Grunerita (3%)

Bulk Density

3287 / ABNT NBR 15845-2

Apparent Porosity

0,44 / ABNT NBR 15845-2

Absorption By Weight

0,14 / ABNT NBR 15845-2

Abrasive Wear

149,49 / ASTM C241

Flexural Strength

45,70 / ABNT NBR 15845-7

Compressive Strength

229,43 / ABNT NBR 15845-5

Stain Resistance

ALTA

Petrographic Analysis

It consists of classifying the rock through the macroscopic and microscopic description of its characteristics, such as minerological composition, alteration, deformation and microcracking pattern.

Apparently density

Relationship between the mass and apparent volume of the rock. It provides the weight of the rock, being an important parameter for calculating loads in buildings.

Apparent porosity

It is the relationship between the volume of voids and the total volume of the rock expressed as a percentage.

Water absorption

It is the ability to assimilate or incorporate water into the rock, expressed as a percentage.

Abrasion resistance

Determines the wear rate due to friction of particles with the surface of a rock plate.

Bending resistance

It simulates bending stresses in rock slabs with a predetermined thickness, in this case simulating the effect of wind on slabs fixed to façades with metal anchors.