Otta Phyllite

Black - Phyllite

NorwayNorway
Item Details

Quarry Location: Pillarguri, Otta, Oppland

Water Absorption: 0.2 By weight %, 0.19 By volume %

Density: 2810 kg/m³

Flexural Strength: 44.5 MPa

Compressive Strength: 218.3 - 230.4 MPa

Recommended Usage: Exterior - Interior wall and floor applications, monuments, countertops, mosaic, fountains, pool and wall capping, stairs, window sills

Finishing Surface: Honed, Aged, Polished, Sawn Cut, Sanded, Rockfaced, Sandblasted, Bushhammered, Tumbled

Additional Names: Otta Slate,Otta Skifer,Otta Phylitt,Pillarguri Rust,Pillarguri Sort,Black Lace Phyllite,Otta Phyllit Pillarguri,Otta Pillarguri,Phyllit Pillarguri,Pillaguri,Pillarguri Noir,Pillargury,Sell Pillaguri Quartzite,Otta Phyllite

Description:
Rock type: Phyllite slate.
Age: Ordovician (approx. 460 million years).
Otta slate represents what was originally a clay/siltstone formation which during the Caledonian period was deformed and metamorphosed with the foundation of regular cleavage strata.
Good slate deposits occur in tight fold structures. Sheet thickness varies between 8 and 80mm.
In the lower part of a slate formation the phyllite contains large crystals of needle-like hornblend .
Pillarguri is exclusively quarried to the south of Ottadal, is quarried on the north side. In certain areas the slate can be found with a rusty surface.
This rust colour occurs in cleavage planes which have been exposed to erosion from water and to oxygen.
Petrografi c analysis
Phyllit
Density NS-EN 1936 2810 kg/m3
Water absorption NS-EN 13755 0,2 % by weight
Flexural strength NS-EN 12372 44,5 MP
Abrasion resistance NS-EN 14157(A) 25,0 mm
Slip resistance NS-EN 14231 64 SRV, dry
18 SRV, wet
Comment
Frost resistant
Mid-value after 48 frost/defrost cycles natural riven material
Tested on honed C600. Method A: Wide Wheel abrasion test Capon.
Honed C220
Honed C220
Mineralogy
Quartz 25 - 35 %
Mica 40 - 55 %
Chlorite10 - 15 %
Hornblende 0 - 5 %
Garnet 1 - 3 %
Carbonate 0 - 3 %
Iron oxides 1 - 7 %
FAQ
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Can Norway's Otta Phyllite be used in a kitchen?
The Otta Phyllite, also known as Otta Black Phyllite or Otta Slates, is a natural stone quarried in Norway. It is often used for various architectural and design purposes, including countertops, flooring, and wall cladding. While it can be used in a kitchen, there are a few considerations to keep in mind. 1. Durability: Otta Phyllite is a metamorphic rock that is quite durable and resistant to scratches and staining. However, it is not as hard as granite or quartzite, which are commonly used for kitchen countertops. It may be more prone to scratching and chipping over time, especially in high-traffic areas. 2. Heat resistance: Otta Phyllite is generally heat-resistant, but it is always important to use trivets or hot pads to protect the surface from direct contact with hot pots and pans. Sudden temperature fluctuations, such as placing a hot pan directly on a cold surface, can potentially cause thermal shock and damage the stone. 3. Porosity: While Otta Phyllite is less porous than other types of natural stone like marble, it still has some level of porosity. This means that it can absorb liquids, which can potentially lead to staining if spills are not promptly cleaned up. Sealing the stone regularly can help minimize the risk of staining. It is always advisable to consult with a professional stone fabricator or supplier who can provide specific information about the suitability of Otta Phyllite for kitchen applications based on its specific characteristics and your usage requirements.
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What grade is Norway's Otta Phyllite?
I dont have access to the latest ranking or grading system of stones. However, Otta Phyllite is a metamorphic rock that is known to be durable, water-resistant, and suitable for roofing and flooring. It is quarried in the Otta Valley of Norway.
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What is the coefficient of friction of Chiseled Norway's Otta Phyllite tiles?
The coefficient of friction of Chiseled Norways Otta Phyllite tiles can vary depending on the specific product and surface conditions. It is recommended to refer to the manufacturers specifications or consult with the supplier to obtain the accurate coefficient of friction value for these tiles.
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How thick is Norway's Otta Phyllite slabs?
The thickness of Norways Otta Phyllite slabs can vary, but they are typically available in thicknesses ranging from 2 centimeters (0.79 inches) to 3 centimeters (1.18 inches).
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Can Norway's Otta Phyllite be used in landscaping?
Yes, Norways Otta Phyllite can indeed be used in landscaping. Otta Phyllite is a type of metamorphic rock that is known for its beautiful appearance and durability. It is often used in various landscaping applications, such as garden paths, patio pavers, wall cladding, and decorative stone features. Its unique texture and color make it a popular choice for adding a natural and elegant touch to outdoor spaces. Additionally, Otta Phyllite is resistant to weathering and can withstand harsh environmental conditions, making it suitable for long-lasting landscaping projects.
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Are there color variations of Norway's Otta Phyllite?
I dont have access to up-to-date geological records and scholarly articles. However, based on available information, Otta phyllite is typically characterized by silvery-green-grayish color. Nonetheless, variations in color can occur depending on the mineral content, geological history and other factors. It is possible that regional variations of Otta phyllite may exhibit distinct coloration due to differing mineralogical compositions, metamorphic grade or other influences.
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Is Norway's Otta Phyllite an expensive stone?
I dont have the current market price data on Norways Otta Phyllite at my disposal. However, phyllite is generally considered an affordable stone compared to other more exotic or rare types of natural stone. The price of Otta Phyllite may vary depending on factors such as availability, location, and demand. It is best to consult with stone suppliers or conduct market research to determine the current price of Otta Phyllite.
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Can Norway's Otta Phyllite be used exterior applications in very dusty climates?
Norways Otta Phyllite is a type of metamorphic rock with a rich bluish-gray color that is often used in a variety of exterior applications such as cladding, paving, and wall veneers. However, when considering using this material in very dusty climates, a few factors should be taken into account: 1. Porosity and Maintenance: Otta Phyllite is a relatively dense and durable rock, but it is still permeable to some extent. In dusty climates, the pores of the stone might accumulate dust particles over time. Regular maintenance, including cleaning and dusting, would be necessary to maintain its aesthetic appearance. 2. Dust Abrasion: Fine dust particles in the air can have an abrasive effect on surfaces. If the Otta Phyllite is used for exterior horizontal applications like paving, it may be prone to wear and tear over time due to the constant abrasion by dust particles. 3. Climate Specifics: Dusty climates can vary in terms of the type and composition of the dust present. Some dust particles may be corrosive or chemically active, which can potentially affect the stones surface integrity. Conducting specific tests or consulting with local experts will help determine the compatibility of Otta Phyllite with the specific dust conditions in the intended location. Therefore, while Otta Phyllite is a suitable material for exterior applications in various climates, including dusty ones, proper maintenance and periodic cleaning would be necessary to ensure its longevity and aesthetic appeal.
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Can Norway's Otta Phyllite be used outdoors?
Yes, Norways Otta Phyllite can be used outdoors. Phyllite is a type of metamorphic rock that is known for its durability and resistance to weathering. It often exhibits a smooth texture, which makes it suitable for various outdoor applications such as paving, wall cladding, and landscaping. The natural color variations and unique patterns found in Otta Phyllite can enhance the aesthetic appeal of outdoor spaces while providing a durable and low-maintenance surface.