Offerdal

Grey - Quartzite

Sweden

Item Details

Quarry Location: Krokoms Municipality, Jämtland County, Offerdal

Water Absorption: 0.1 by weight %

Density: 2740 kg/m³

Flexural Strength: 35.1 MPa

Compressive Strength: 252 MPa

Recommended Usage: Building stone, fireplaces, stairs, sinks, monuments, pool coping, sills, ornamental stone, mosaic,

Finishing Surface: Sawn Cut, Sanded, Rockfaced, Sandblasted, Bushhammered, Tumbled, Thermalled, Natural Cleft, Weatheredge

Additional Names: Flammet Quartzites Quarzite skiffer,Quarzit Flammet Quartzite,Offerdal

Description:

Rock type: Feldspar metasandstone.
Age: Silurian-Devonian (approx. 650 million years).
The depositing of sediments formed the Offerdal highland region during a period of continental settling. During the formation of the Caledonian mountain range the sediment was moved, deformed and metamorphosed into the Offerdal region as you see it today.
Offerdal slate is a part of the Offerdal highland region and has a fine-banded structure or cleavability. This cleavability can be characterised by clear quartz and feldspar-rich bands together with a cleavage plane rich in mica. The rock’s cleavability makes it possible to split the slates to a thickness of just 5 mm.
The surface is rippled and grey in colour. Polished surfaces vary between grey and green. Offerdal slate is hard and is a quite unique building stone. It occurs in an approx. 10m thick zone over a broad area of the Offerdal region.

Quarrying activities are concentrated in the north-west area of Krokoms Municipality, J?mtland County, in Sweden.

Petrografi c analysis
Density 2740 kg/m3 NS-EN 1936
Water absorption 0,1 % by weight NS-EN 13755
Flexural strength 35,1 MPa NS-EN 12372
Abrasion resistance 18,0 mm NS-EN 14157(A)
Slip resistance 77 SRV, dry NS-EN 14231
19 SRV, wet
Mineralogy
Quartz 44 %
Mica 33 %
Feldspar 23 %

FAQ

How thick is Sweden's Offerdal Quartzite slabs?

The thickness of Swedens Offerdal Quartzite slabs can vary depending on the specific supplier and the intended use. However, common thicknesses for Offerdal Quartzite slabs typically range from 2 cm (0.75 inches) to 3 cm (1.2 inches).

Can Sweden's Offerdal Quartzite be used in a kitchen?

Yes, Swedens Offerdal Quartzite can be used in a kitchen. Quartzite is a natural stone that is highly resistant to heat and scratches, making it an ideal choice for kitchen countertops. It also has a beautiful appearance with its unique veining and color variations, adding a natural and elegant touch to the kitchen. Additionally, quartzite is non-porous, which means it is resistant to staining and does not require sealing like certain other natural stones. This makes it a low-maintenance option for kitchen surfaces.

What grade is Sweden's Offerdal Quartzite?

Swedens Offerdal Quartzite is generally considered to be a high-quality stone. It is known for its durability and versatility, making it suitable for various applications such as countertops, flooring, and wall cladding. However, it is worth noting that the grade of quartzite can vary depending on factors such as color, consistency, and patterning. Specific grades of Offerdal Quartzite may be classified by suppliers or manufacturers based on their own grading systems or specifications.

Can Sweden's Offerdal Quartzite be used exterior applications in very humid climates?

Yes, Swedens Offerdal Quartzite can be used for exterior applications in very humid climates. Quartzite is a natural stone that is known for its durability and resistance to extreme weather conditions. It is highly resistant to water absorption, making it suitable for humid environments. Additionally, its dense and non-porous nature helps prevent moisture intrusion, which reduces the risk of damage and deterioration. Thus, Offerdal Quartzite can be a good choice for outdoor applications in very humid climates. However, it is always recommended to consult with a professional or stone supplier to ensure the specific products suitability for your project.

Are there color variations of Sweden's Offerdal Quartzite?

Yes, there are color variations of Swedens Offerdal Quartzite. Offerdal Quartzite typically comes in shades of gray, ranging from light gray to dark gray. However, it can also exhibit variations in color, such as hints of blue, green, or even reddish tones. These color variations give Offerdal Quartzite a unique and distinct appearance, making it a popular choice for various interior and exterior design applications.

Can Sweden's Offerdal Quartzite be used outdoors?

Yes, Swedens Offerdal Quartzite can be used outdoors. Offerdal Quartzite is a natural stone that is known for its durability, strength, and resistance to weathering. It is commonly used for exterior applications such as countertops, paving stones, and outdoor terraces. Offerdal Quartzites natural resistance to frost, heat, and moisture makes it an ideal choice for outdoor use.

What is the average hardness of Sweden's Offerdal Quartzite?

The average hardness of Swedens Offerdal Quartzite is typically around 7 on the Mohs scale of mineral hardness.

Can Sweden's Offerdal Quartzite be used in floor coverings?

Yes, Swedens Offerdal Quartzite can be used for floor coverings. Offerdal Quartzite is a type of natural stone that is known for its durability, hardness, and resistance to staining and wear. These characteristics make it suitable for high-traffic areas and make it an ideal choice for floor coverings. The quartzite can be cut into tiles or slabs of various sizes and finishes, allowing it to be used as flooring material in residential and commercial spaces.

Is Sweden's Offerdal Quartzite an expensive stone?

I do not have access to current market prices or inventory levels for Offerdal Quartzite. However, the cost of any natural stone varies depending on factors such as availability, location, quality, transportation, and processing. Offerdal Quartzite is known for its durability, beautiful grey-blue color, and suitability for a range of applications such as flooring, cladding, landscaping, and countertops. As with any natural stone, the price of Offerdal Quartzite may be considered expensive or affordable depending on personal preferences and budget constraints. It is always best to obtain a price quote from a reputable supplier or contractor to get an accurate estimate of the cost of the stone and associated installation services.

What is the coefficient of friction of Water Jet Cut Sweden's Offerdal Quartzite tiles?

The coefficient of friction of Water Jet Cut Swedens Offerdal Quartzite tiles is not provided in the given information. To obtain this information, it is recommended to contact Water Jet Cut Sweden directly or refer to their product specifications or documentation.