Giallo Speranza is a distinctive granite quarried in Brazil, renowned for its medium to coarse-grained texture and stunning golden yellow base. It is enhanced with rich patterns of dark brown and grayish-black resembling garnets, giving it an elegant and luxurious appearance that is highly sought after in the natural stone market.

Physical and Mechanical Properties

Water Absorption:

• Generally low, around 0.2% - 0.5%.
• Indicates a good level of water resistance.

Density:

• Approximately 2,630 - 2,750 kg/m³.
• This dense characteristic contributes to its strength and durability.

Flexural Strength:

• Around 9 - 14 MPa.
• Flexural strength refers to the ability of the granite to withstand bending forces.

Compressive Strength:

• Typically in the range of 150 - 190 MPa.
• This high compressive strength makes it suitable for structural applications.

Hardness:

• Ranges from 6 to 7 on the Mohs scale.
• Indicates a relatively high resistance to scratches and abrasion.

Porosity:

• Low porosity, around 0.3% - 1.0%.
• Contributes to its water resistance and ability to endure environmental weathering.

Slip Resistance:

• Varies based on finish; honed surfaces offer better slip resistance than polished ones.
• Important for flooring applications to prevent slipping.

Chemical and Mineral Composition (% by Weight)

• Feldspar (Alkali Feldspar and Plagioclase): ~60% - 70%
• Quartz: ~15% - 30% Contributes to the hardness and resistance to chemical weathering.

• Biotite and Hornblende (Micas and Amphiboles): ~5% - 10%Provides the dark flecks and contributes to overall durability.

• Garnets: Trace amounts. Presents as dark brown and black spots contributing to unique aesthetics.

• Other Minerals (e.g., Magnetite): Trace amounts.

Usage

Interior Applications:

• Countertops and vanity tops.
• Flooring and staircases.
• Wall cladding and fireplaces.

Exterior Applications:

• Building facades and cladding.
• Paving and landscaping.
• Monuments and sculptures.

Commercial and Residential Projects:

• Suitable for both due to its durability and aesthetic qualities.

Maintenance

• Regular Cleaning: Use a damp cloth with mild soap. Avoid acidic or abrasive cleaners.
• Sealing: Regular sealing (once a year or as needed) enhances resistance to staining.
• Polishing: Occasional polishing restores shine, especially in high-traffic areas.

Cutting Sizes (cm)

• Commonly available in slabs with dimensions of:
• Slabs: ~180cm x 300cm or more.
• Tiles: 30cm x 60cm, 60cm x 60cm, 60cm x 120cm.

Available Surface Finish Options

• Polished:High-gloss finish that highlights color and pattern.

• Honed:Matte finish with a smooth feel, suitable for slip-prone areas.

• Leathered:Textured finish offering a rustic appearance.

• Bush-hammered or Flamed:Rough surface for enhanced slip resistance, often used outdoors.

Giallo Speranza Granite stands out as a versatile and beautiful natural stone choice for a variety of applications, blending durability with an aesthetic appeal that complements many design styles.