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Pietra Macigno Sandstone

Pietra Macigno Sandstone

Grey - Sandstone

Italy

About

Item Details

Material Type:
Sandstone
Origin:
Italy (Greve in Chianti (FI))
Primary Color(s):
Grey
Recommended Usage:
Monuments, building stone, ornamental stone, stairs, interior, exterior wall and floor applications, mosaic, wall panels, reliefs, window sills, balustrades, columns, wall and pool copings, pool pavers, sculptures, fireplaces, cobbles, pavers, curbstone
Additional Names:
Pietra di Santa Brigida, Santa Brigida Grey Sandstone, Pietra Macigno
Finished Surface:
Bush Hammered,Tumbled,Brushed,Honed,Split,Machine Cut,Natural Surface,Sandblasted,Combed,Leathered,Filled,Chiseled,Pickling

Testing

Water Absorption:
1.43 %
Density:
2620 kg/m³
Flexural Strength:
14.1-14.9 MPa
Compressive Strength:
90.3 MPa
Stone texture:
a sedimentary lithotype sandstone with a gray, heterogeneous appearance, characterized by indistinct dark streaks caused by locally finer grain sizes, and speckled with sub-millimetric black and pearly inclusions

Description

Pietra Macigno Sandstone

Pietra Macigno is a distinct type of sandstone quarried in Greve in Chianti, Italy. It is characterized by its gray appearance with heterogeneous tones, adorned with indistinct dark streaks and speckled with sub-millimetric black and pearly inclusions. Here is a detailed breakdown of its properties, composition, uses, maintenance, and finishes:

Physical and Mechanical Properties:

  • Water Absorption: 1.43%
  • Density: 2620 kg/m³
  • Flexural Strength: 14.1-14.9 MPa
  • Compressive Strength: 90.3 MPa
  • Hardness: While specific values might vary, sandstone generally offers moderate hardness, suitable for various applications.
  • Porosity: Medium porosity which affects its water absorption and weathering properties.
  • Slip Resistance: Generally good, depending on the surface finish, making it suitable for flooring use.

Chemical and Mineral Composition:

The specific chemical and mineral composition of Pietra Macigno can vary, but it typically includes:

  • Quartz: Main mineral component, often comprising over 70% of the stone.
  • Feldspar: Typically 10-15%
  • Mica and other minerals: Can include biotite or muscovite in minor quantities.
  • Cementing materials: Silica, calcite, or iron oxides might contribute to its binding characteristics.

Usage and Applications:

  • Building Material: Widely used in construction and architectural detailing.
  • Flooring and Paving: Suitable due to its strength and slip resistance.
  • Wall Cladding: Both interior and exterior applications benefit from its visual appeal.
  • Landscaping: Often used for various hardscaping features.
  • Monuments and Sculptures: Occasionally, used depending on specific aesthetic and functional requirements.

Maintenance:

  • Regular Cleaning: Gentle cleaning with pH-neutral products to preserve its natural look.
  • Sealing: To reduce water absorption, it may need sealing, especially in high-moisture environments.
  • Periodic Inspection: Regular examination for any wear or deterioration, addressing issues as they arise.

Cutting Sizes and Surface Finishes:

  • Cutting Sizes: Available in a variety of standard and custom sizes, especially tiles and slabs, accommodating specific project needs.
  • Common Surface Finishes:
  • Polished: Enhances color and patterns, providing a glossy finish.
  • Honed: Offers a smooth, matte finish for a more natural look.
  • Bush-Hammered: Adds texture, improving slip resistance while showing a rugged appearance.
  • Sandblasted: Provides a slightly rough texture, exposing the stone's granular detail.

Pietra Macigno is appreciated for both its aesthetic qualities and practical functionalities, making it an excellent choice for a variety of architectural and design projects. Proper care and maintenance will ensure its longevity and continued beauty in any application.

PHYSICAL-MECHANICALU.M. NORMA VAL. MIDDLE DEV. ST. 

  • EN 13755-08 of pressure Atmospheric Water absorption... 1.43 % 0.06 
  • EN 1936-07 Bulk density ... 2620 Kg/m3 40.2 
  • EN 1936-07 Open Porosity...3.69 % 0.18 
  • EN 12372-07 Resistance to bending with concentrated load  (Unprocessed) ...14.9 MPa  2.4 
  • (EN 12371-03 after 48 cycles of freezing) ...14.1 MPa  2.6 
  • EN 1926-07 compressive strength ...90.3 MPa  4.9 
  • EN 14231-04 Slip resistance :

        - smooth finish (dry) USRV 67 0.8 

        - smooth finish (wet) USRV 59 3

FAQ

Can Italy's Pietra Macigno Sandstone be used in landscaping?

Yes, Italys Pietra Macigno sandstone can be used in landscaping. It is a popular choice for landscaping projects because of its natural beauty, variety of color options, and durability. Pietra Macigno sandstone can be used for a range of landscaping purposes, including paving, patios, pathways, retaining walls, garden walls, and decorative features. It is highly versatile and can complement various architectural styles, making it a preferred material for both residential and commercial landscapes.

What is the coefficient of friction of Water Jet Cut Italy's Pietra Macigno Sandstone tiles?

The coefficient of friction of Water Jet Cut Italys Pietra Macigno Sandstone tiles can vary depending on several factors such as the specific manufacturing process, surface finish, and the presence of any treatment or coatings. Therefore, it is recommended to contact Water Jet Cut Italy or consult their product specifications for accurate information on the coefficient of friction of their Pietra Macigno Sandstone tiles.

Can Italy's Pietra Macigno Sandstone be used exterior applications in cold climates?

While Pietra Macigno Sandstone can be used for exterior applications, its suitability in cold climates may depend on specific factors such as the severity and duration of freezing temperatures, moisture exposure, and the quality of the stone. Generally, sandstone is more prone to weathering and deterioration in colder climates due to freeze-thaw cycles, where water absorbed by the stone freezes and expands, leading to cracking and decomposition over time. However, if the stone is properly treated, sealed, and maintained, it can withstand colder climates to some extent. To ensure the proper use of Pietra Macigno Sandstone in cold climates, it is advised to consult with stone experts, architects, or contractors who are familiar with the specific stone and its performance in similar conditions. They can provide guidance on proper installation methods and any additional measures required to enhance its durability and resistance to cold weather effects.

Can Italy's Pietra Macigno Sandstone be used in a bathroom?

Yes, Italys Pietra Macigno Sandstone can be used in a bathroom. It is a durable and aesthetically appealing natural stone that can withstand moisture and humidity. Many people use this sandstone for bathroom countertops, vanity tops, flooring, and wall cladding. However, it is important to properly seal and maintain the stone to prevent water damage and staining.

What grade is Italy's Pietra Macigno Sandstone?

Italys Pietra Macigno Sandstone is commonly classified as a Grade A sandstone. However, it is important to note that grading systems for natural stone can vary, and different suppliers or experts may have slightly different classifications.

Can Italy's Pietra Macigno Sandstone be used outdoors?

Yes, Italys Pietra Macigno Sandstone can be used outdoors. It is a natural stone with good resistance to weathering and durability, making it suitable for outdoor applications such as paving, wall cladding, and landscaping. However, it is always recommended to consult with professionals or experts in the field to ensure the proper installation and maintenance of the stone in outdoor environments.

How thick is Italy's Pietra Macigno Sandstone slabs?

I do not have access to current information regarding the thickness of Italys Pietra Macigno Sandstone slabs. However, from available sources, these slabs are known to vary in thickness depending on the specific quarry and processing preferences of the manufacturer. They can range from 2cm to 10cm and above. The best way to determine the thickness of a specific slab is to consult with the manufacturer or supplier.

Are there color variations of Italy's Pietra Macigno Sandstone?

Yes, there can be variations in the color of Italys Pietra Macigno Sandstone depending on the location where it is quarried. The stone can range from light beige to warm yellow, with occasional pink or gray veining. Some variants may also have a darker or more variegated appearance.

Is Italy's Pietra Macigno Sandstone an expensive stone?

I do not have access to the latest market prices. However, in general, Pietra Macigno Sandstone is considered to be a relatively affordable natural stone compared to other high-end materials like marble or granite. The cost of Pietra Macigno Sandstone may vary depending on factors such as the size, thickness, and finishing of the stone, as well as the region and supplier. It is best to check with local suppliers or stone fabricators for current pricing information.

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