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Quartzites

Bronzite Vintage

Between 2.8 to 2.5 billion years ago, cyanobacteria produced oxygen through photosynthesis, changing the atmosphere, which reacted with iron from underwater volcanoes, forming oxides that sank, creating layers of iron in the ocean. This cycle shaped the Bronzite, rich in iron and quartz, displaying hardness and reddish shades. Bronzite Quartzite is a crucial witness of the planet history.

Finishes

Flamed

Applications

Indoor Flooring

Internal Walls

Kitchen Countertops

Table Tops

Bathrooms

External Fireplace Coating

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

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.