| Characteristics | Value |
| Hardness | 6-7 |
| Heat Resistance | Very High |
| Acid Resistance | Low |
| Maintenance | Low (waterproofing recommended) |
| Common Uses | Countertops, floors, facades and exteriors |
| Reference standard 15.845/2015 |
White Piracema Granite processing techniques
The White Piracema Granite is a medium to coarse-grained igneous rock, colored grayish white with wavy black veins, which gives it a lively and very characteristic appearance. It is a material extracted in Brazil, quite popular in the domestic and foreign markets.
Average Mineral Composition
- Alkali feldspar + Plagioclase: 45–55%
- Quartz: 20–30%
- Biotite and hornblende: 10–15%
- Iron oxides and accessory minerals: 3–5%
Properties
- Hardness: 6–7 Mohs (scratch resistant).
- •Water absorption 0.2% – 0.5% (average for granites).
- Compressive strength: > 200 MPa.
- Durability: excellent for indoor and outdoor environments.
The movement of the veins makes each sheet unique, but requires careful installation to align aesthetic standards in larger projects.
INFORMATION FOR FABRICATORS (Stone Workers)
Recommended Finishes
- •Polished: highlights the contrast between the white/gray background and the black veins, often used on countertops.
- •Honed: elegant matte finish, excellent for indoor floors.
- •Brushed (Leather): gives a satin and uniform texture, widely used in kitchens.
- Flamed + Brushed: recommended for outdoor areas (floors, ramps, balconies).
Processing and Cutting
- This stone good workability, accepts straight cuts and rounded edge machining well.
- Pay attention to dark veins when cutting to avoid compromising the aesthetics.
- Recommended discs: Diamond blade 350 mm OS–31SS or Diapar DP-1015 for granites.
Sealing
Due to the presence of dark veins and mafic minerals, waterproofing is recommended to prevent oil stains and infiltration.
Recommended Products:
- •Brazil: Rock Protect – Chemistone, Nano Effect – AKEMI, Idea Gold – Bellinzoni
- •International: Proseal – Tenax, Stain Proof – Dry Treat, Idea Gold – Bellinzoni
Procedure:
- Apply to a clean, dry surface with a brush or roller.
- In the case of floors, also waterproof the sides before laying.
Adhesive Bonding
- Use epoxy or polyester glues specifically for granite.
- Seams should be pigmented gray or black to blend in with the grain.
INSTALLATION
- Countertops: support every 60 cm, gluing with white or gray PU40. Avoid industrial silicones.
- Indoor/Outdoor Floors: lay with white/gray ACIII adhesive mortar. Grout with flexible grout.
- Reapply waterproofing after the mortar has cured.
CLEANING AND MAINTENANCE
- Routine: water + neutral detergent.
- Avoid: abrasive products and strong acids (chlorine, caustic soda, muriatic acid).
- Post-construction: recommended cleaners → Quartzolit Post-Construction, Bellinzoni floor cleaning detergent, PCS Alkaline – Floor Clean.
FINAL CONSIDERATIONS
The White Piracema Granite is a material of great resistance and durability, which combines well with both residential and commercial projects. Your busy look requires planning when installing, but adds great aesthetic value when applied well. It is highly recommended for kitchen countertops, stairs, facades and external floors due to its resistance and low maintenance.
