Lucerna Gneiss

Grey - Gneiss

Brazil

About

Item Details

Material Type:: Gneiss
Origin:: Brazil
Primary Color(s):: Grey
Recommended Usage:: Kitchen and bathroom countertops, monuments, building stone, ornamental stone, stairs, interior, exterior wall and floor applications, mosaic, waterjet pattern, wall panels, table tops, window sills, balustrades, columns, wall and pool copings, pool pavers, sculptures, fireplaces, pavers, cobbles, curbstone
Additional Names:: Lucerna Stone, Lucerna Grey Gneiss, Lucerna Gneiss
Finished Surface:: Polished,Flamed,Bush Hammered,Tumbled,Brushed,Honed,Split,Machine Cut,Natural Surface,Sandblasted,Acid Washing,Combed,Leathered,Water Jet,Filled,Chiseled,Pickling

Testing

Water Absorption:: 0.2% - 0.6%
Density:: 2700 - 2900 Kg/m³
Flexural Strength:: 12 - 15 MPa
Compressive Strength:: 120 - 160 MPa
Stone texture:: a silver-grey color and a coarse-grained, with visible mineral bands, textured surface gneiss

Description

Description of Lucerna Gneiss

Lucerna Gneiss is a striking natural stone known for its distinctive silver-grey color. It features a coarse-grained texture with easily visible mineral bands, making it a popular choice for both aesthetic and functional applications. This type of gneiss is quarried in Brazil and is appreciated for its visual appeal and robustness.

Physical and Mechanical Properties

Water Absorption: Typically low, around 0.2% - 0.6%, indicating good resistance to water penetration.
Density: Approximately 2.7 - 2.9 g/cm³, representing a dense and durable material.
Flexural Strength: Generally around 12 - 15 MPa, showing it can withstand moderate flexural stresses.
Compressive Strength: Typically ranges from 120 - 160 MPa, illustrating its ability to bear significant weight.
Hardness: Quite hard, usually around 6 - 7 on the Mohs scale, contributing to its scratch resistance.
Porosity: Low porosity, enhancing its resistance to weathering and staining.
Slip Resistance: Good slip resistance, especially when a textured or flamed finish is applied.

Chemical and Mineral Compositions

Quartz: Approximately 25% - 35% by weight.
Feldspar: Around 30% - 40%.
Mica (Biotite and/or Muscovite): Roughly 10% - 20%.
Other Minerals: Around 5% - 15%, which can include garnet, graphite, and hornblende.
Trace Elements: Small amounts of iron oxide and other minerals that contribute to its color and durability.

Usage

Interior Applications: Flooring, wall cladding, kitchen countertops, and bathroom vanities.
Exterior Applications: Facades, outdoor flooring, stairs, and landscaping elements.
Decorative Uses: Custom artworks, garden features, and monuments.

Maintenance

To maintain the aesthetic and performance characteristics of Lucerna Gneiss, regular cleaning with pH-neutral detergents is recommended. Periodic sealing can help protect against staining and moisture penetration. Avoid abrasive materials or harsh chemicals that could damage the surface.

Cutting Sizes

Lucerna Gneiss can be cut into customized sizes based on project requirements. Standard slab thicknesses range from 2 cm to 3 cm. Common tile sizes include:

30 x 30 cm
60 x 30 cm
60 x 60 cm

Surface Finish Options

Polished: Offers a glossy and reflective surface, enhancing the stone's natural colors.
Honed: Provides a smooth, non-reflective, matte finish.
Flamed: Produces a rough texture for outdoor slip resistance.
Bush-Hammered: Delivers a textured finish that is suitable for high-traffic areas.
Leathered: Combines a soft sheen with a textured feel, enlivening the stone's natural pattern.

Summary

Lucerna Gneiss stands out as a versatile, durable option for various construction and decorative applications, thanks to its impressive physical properties and aesthetic appeal. Its silver-grey color and distinct mineral bands make it a valuable choice for both traditional and contemporary designs.

FAQ

Can Brazil's Lucerna Gneiss be used in landscaping?

Yes, Lucerna Gneiss from Brazil can be used in landscaping. Gneiss is a durable and visually appealing rock that is commonly used in various landscaping applications. Its unique colors and textures make it suitable for pathways, garden walls, rock gardens, and decorative features in outdoor spaces. Lucerna Gneiss specifically, with its characteristic bands of different colors and patterns, can add an interesting and natural look to landscaping projects.

Can Brazil's Lucerna Gneiss be used exterior applications in very rainy climates?

Yes, Brazils Lucerna Gneiss can be used for exterior applications in very rainy climates. Gneiss is a type of metamorphic rock that typically has good weathering resistance and durability, making it suitable for outdoor use. However, it is always recommended to consult with a professional stone supplier or geologist to ensure the specific type and quality of Lucerna Gneiss you intend to use is appropriate for the desired application and environmental conditions.

Can Brazil's Lucerna Gneiss be used indoors?

Yes, Brazils Lucerna Gneiss can be used indoors. Lucerna Gneiss is a type of natural stone that is often used as a decorative material for interior applications such as countertops, flooring, wall cladding, and decorative accents. Its unique patterns and colors make it a popular choice for adding a natural and luxurious touch to indoor spaces.

How thick is Brazil's Lucerna Gneiss slabs?

The thickness of Brazils Lucerna Gneiss slabs can vary depending on the specific quarry and supplier. However, on average, these slabs are typically available in thicknesses ranging from 2 centimeters (0.8 inches) to 3 centimeters (1.2 inches). Its important to note that custom thicknesses may also be available upon request.

Can Brazil's Lucerna Gneiss be used in a dining room?

Yes, Brazils Lucerna Gneiss can be used in a dining room. Gneiss is a type of metamorphic rock that has a unique combination of beautiful colors and patterns. Lucerna Gneiss, in particular, is known for its striking gold, beige, and gray hues. It can be transformed into various interior applications, including countertops, tabletops, flooring, and wall claddings, making it a suitable choice for a dining room. The natural beauty and durability of gneiss make it an excellent option for adding elegance and sophistication to any space, including dining areas.

What is the coefficient of friction of Chiseled Brazil's Lucerna Gneiss tiles?

The coefficient of friction of Chiseled Brazils Lucerna Gneiss tiles can vary depending on the specific finish and surface texture of the tiles. Generally, gneiss is known to have a moderate to high coefficient of friction due to its coarse-grained nature and interlocking minerals. However, for an accurate value, it is recommended to contact the manufacturer or supplier of Chiseled Brazils Lucerna Gneiss tiles for the specific coefficient of friction information they provide for their product.

What grade is Brazil's Lucerna Gneiss?

I dont have access to the grades of individual rocks. However, the Lucerna Gneiss is a rock formation located in Brazil and is known for its unique and striking appearance. It is a metamorphic rock that has undergone intense pressure and heat over time, resulting in its distinctive banded texture and coloration. The Lucerna Gneiss has been studied extensively by geologists and contains valuable information about the geological history of the region.

Are there color variations of Brazil's Lucerna Gneiss?

Yes, there can be color variations in Brazils Lucerna Gneiss. The typical color of Lucerna Gneiss is whitish-gray, but it can also be found in shades of pink, yellow, green, and black due to the presence of different minerals in the rock. The color variation depends on the location within the quarry and the geological processes that formed the rock.

Is Brazil's Lucerna Gneiss an expensive stone?

I dont have access to the current market prices of stones. However, Lucerna Gneiss is a rare and unique stone found in Brazil, so it is likely to be more expensive compared to other more common stones. The cost may also vary depending on the quality and availability of the stone.