Areia Quartzosa

Materials

Quartz Sand

Quartz sand is composed predominantly of quartz grains (SiO₂), one of the most abundant minerals in the Earth's crust and essential in various industrial and technological applications. Found in different geological deposits—such as sandstone, quartzite, alluvium, and dunes—it can present variations in purity depending on its origin and processing method.

Recognized for its high purity, strength, and chemical stability, Jundu produces quartz sand with up to 99.9% silica, meeting the most demanding quality standards on the market. Its main properties include high thermal resistance (melting point around 1,750 °C), chemical inertness (insoluble in most acids), and high hardness (7 on the Mohs scale).

Applications

The specifications for quartz sand for industrial use vary according to the application, and may involve criteria such as particle size distribution, grain morphology, mineralogical and chemical composition—especially regarding the presence of impurities. Therefore, the beneficiation process is essential: it enhances the mineral's properties, ensuring its compliance with the technical and commercial requirements of the market. Jundu solutions produced from quartz sand are used in various sectors:

Chemical Industry

Silicate manufacturing
Paint Industry

Glass Industry

Flat glass, packaging, fiberglass, and technical glass.
Essential raw material, representing up to 70% of the composition of some types of glass.

Sports and Leisure

Courts for beach tennis, footvolley, beach volleyball, among others.
Golf Courses and Bunkers
Equestrian track and other equestrian sports
Sand for playgrounds and arts and crafts activities.
Synthetic grasses.

Where We Produce

Estância (SE)

Descalvado (SP)

Balneário Barra do Sul (SC)

Analândia (SP)

The purest quartz sand in Brazil comes from southern Bahia.

Jundu owns a deposit in Santa Maria Eterna, in southern Bahia, recognized as the purest quartz sand available in Brazil. With very high levels of silicon dioxide (SiO₂) and very low levels of contaminants, this sand is essential for applications requiring maximum quality and purity. After processing, this raw material becomes various solutions for the production of extra-clear glass, electronic-grade silicon carbide (used in semiconductors, solar panels, and high-standard quartz surfaces). The exceptional purity of this deposit allows it to meet the most demanding markets, positioning Jundu as a benchmark in high-performance industrial minerals.

Key-Figures

Different specifications are produced in Jundu from quartz sand.

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Fiberglass produced in Brazil is manufactured with materials from Jundu.

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mineral research laboratories and applications. Jundu

Markets

Mortars and Grouts

Quartz sands for adhesive mortars and grouts, of high purity, that contribute to better workability, adhesion, resistance and efficiency in applications.

Mortars and Grouts

Quartz sands for adhesive mortars and grouts, of high purity, that contribute to better workability, adhesion, resistance and efficiency in applications.

Thermoelectric Boiler

Fluidized bed thermoelectric boilers use sand as an essential medium to ensure stable and efficient combustion, guaranteeing reliability and reduced operating costs.

Thermoelectric Boiler

Fluidized bed thermoelectric boilers use sand as an essential medium to ensure stable and efficient combustion, guaranteeing reliability and reduced operating costs.

Silicon Carbide

High purity in the production of green, black, and electronic-grade silicon carbide, ensuring thermal consistency and stability for industrial and technological applications.

Silicon Carbide

High purity in the production of green, black, and electronic-grade silicon carbide, ensuring thermal consistency and stability for industrial and technological applications.

Ceramic

We supply high-purity quartz sands and ground silica for applications in ceramic bodies, glazes, and frits, guaranteeing impeccable technical performance and aesthetics.

Ceramic

We supply high-purity quartz sands and ground silica for applications in ceramic bodies, glazes, and frits, guaranteeing impeccable technical performance and aesthetics.

Concrete

High-performance concrete, with high strength, durability and low porosity, used in infrastructure projects, industrial floors and structures that require high technical performance.

Concrete

High-performance concrete, with high strength, durability and low porosity, used in infrastructure projects, industrial floors and structures that require high technical performance.

Sports

Atuamos no mercado esportivo desenvolvendo soluções minerais específicas para beach sports, esportes equestres, golfe, campos esportivos e sistemas de grama sintética.

Sports

Atuamos no mercado esportivo desenvolvendo soluções minerais específicas para beach sports, esportes equestres, golfe, campos esportivos e sistemas de grama sintética.

Fiberglass

Lightweight and strong material, made of thin silica-based glass filaments, widely used as reinforcement in composites due to its thermal, electrical, and structural performance.

Fiberglass

Lightweight and strong material, made of thin silica-based glass filaments, widely used as reinforcement in composites due to its thermal, electrical, and structural performance.

Foundry

Jundu is a leading supplier of raw materials for foundries, and was the first Brazilian company to develop technology for the Shell Molding process.

Foundry

Jundu is a leading supplier of raw materials for foundries, and was the first Brazilian company to develop technology for the Shell Molding process.

Filtering Media

Filtration is fundamental in water treatment, and sand plays a key role as an essential filtering medium for retaining impurities and improving water quality.

Filtering Media

Filtration is fundamental in water treatment, and sand plays a key role as an essential filtering medium for retaining impurities and improving water quality.

Oil and Natural Gas

Solutions in Frac Sands and Gravel Pack (natural or resin-coated), which act as propants in fracturing and stimulation operations of oil and natural gas wells.

Oil and Natural Gas

Solutions in Frac Sands and Gravel Pack (natural or resin-coated), which act as propants in fracturing and stimulation operations of oil and natural gas wells.

Silicate

Soap, detergent, catalysts, textiles, paper and pulp are some of the chemical industry products that use Sodium Silicate in their formulations, ensuring high purity and performance.

Silicate

Soap, detergent, catalysts, textiles, paper and pulp are some of the chemical industry products that use Sodium Silicate in their formulations, ensuring high purity and performance.

Quartz Surfaces

Quartz surfaces are slabs made from ground quartz combined with resins, recognized for their durability, low porosity, strength, and aesthetic versatility in architectural applications.

Quartz Surfaces

Quartz surfaces are slabs made from ground quartz combined with resins, recognized for their durability, low porosity, strength, and aesthetic versatility in architectural applications.

Glass

Glass is essential in everyday life, and at Jundu, mineral solutions such as quartz sand, dolomite, and limestone are developed with science and innovation to serve the entire glass industry chain.

Glass

Glass is essential in everyday life, and at Jundu, mineral solutions such as quartz sand, dolomite, and limestone are developed with science and innovation to serve the entire glass industry chain.

Materials

Quartz Sand

Composed of high-purity quartz, with high thermal resistance, chemical stability and hardness, for high-performance applications.

Quartz Sand

Composed of high-purity quartz, with high thermal resistance, chemical stability and hardness, for high-performance applications.

Resinated Sands

Dry quartz sands coated with synthetic resins, mainly used in the foundry and oil and gas industries.

Resinated Sands

Dry quartz sands coated with synthetic resins, mainly used in the foundry and oil and gas industries.

Ground Silica

Ground silica is derived from quartz, with high purity and controlled particle size, and is used in industries such as ceramics and fiberglass.

Ground Silica

Ground silica is derived from quartz, with high purity and controlled particle size, and is used in industries such as ceramics and fiberglass.

Limestone

Limestone is a rock rich in calcium carbonate (CaCO₃), with high purity and controlled particle size, used especially in the glass industry.

Limestone

Limestone is a rock rich in calcium carbonate (CaCO₃), with high purity and controlled particle size, used especially in the glass industry.

Dolomite

Dolomite is a double carbonate mineral of calcium and magnesium, processed to high purity and used primarily in the glass industry.

Dolomite

Dolomite is a double carbonate mineral of calcium and magnesium, processed to high purity and used primarily in the glass industry.