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Shaanxi Grey Granite

Shaanxi Grey GraniteShaanxi Grey Granite
Shaanxi Grey Granite

Granite

China

About

Item Details

Material Type:
Granite
Origin:
China (Shaanxi province)
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:
Shanxi Grey Granite, Southern Shaanxi Grey Granite, Shaanxi Gray Granite, Shaanxi Black Granite, in China stone market:陕南灰(Shǎnnán Huī）
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:
0.1–0.25 % by weight
Density:
2680–2750 kg/m³
Flexural Strength:
13–22 MPa
Compressive Strength:
150–210 MPa

Description

Appearance, Texture & Pattern

Base Color:

  • Medium to deep, rich grey background ranging from charcoal to slate grey.
  • Subtle, linear or granular pattern with fine specks and streaks of black (mica/hornblende), white (feldspar/quartz), and occasionally silvery flecks.

Texture & Grain:

  • Granular texture, medium-grained, crystalline structure.
  • Fine to moderate grain size yields a uniform visual field with gentle pattern movement.
  • Polished finishes enhance contrast and natural luster; honed or leathered finishes emphasize matte, tactile qualities.

Pattern Characteristics:

  • Not strongly veined like marble; more consistent granular and peppered pattern.
  • Some slabs can show linear mineral alignment due to flow or compositional variation in the rock body.

Typical Physical & Mechanical Test Results

  • Density~2.68–2.75 g/cm³
  • Water Absorption~0.1–0.25 % by weight
  • Compressive Strength~150–210 MPa
  • Flexural (Modulus of Rupture)~13–22 MPa
  • Mohs Hardness6–7
  • Porosity (Open)~0.2–1.0 %
  • Thermal Expansion~7–9 ×10⁻⁶ /°C

Chemical & Mineral Composition

Mineralogical Makeup (Approx by Volume)

  • Quartz: ~20–40 %
  • Feldspar (Alkali + Plagioclase): ~50–70 %
  • Mica (Biotite/Muscovite) & Accessory Minerals: ~3–10 %
  • Minor Hornblende/Others: trace amounts

Typical Oxide Chemistry (% weight) 

  • SiO₂: 65–75 %
  • Al₂O₃: 12–15 %
  • K₂O: ~3–6 %
  • Na₂O: ~2–4 %
  • CaO: ~0.5–3 %
  • FeO / Fe₂O₃: ~1–3 %
  • MgO & TiO₂: <1 %

Industrial & Design Uses

  • Architectural façades & cladding
  • Floor & wall tiles
  • Kitchen countertops & bathroom vanities
  • Stair treads, risers & landscape paving
  • Monuments, memorials, and decorative stone features
  • Pool coping, benches & seating elements

Its low water absorption and frost resistance make it suitable for outdoor applications.

Maintenance & Care Guidelines

  • Routine Cleaning: pH-neutral stone cleaner or mild soap + water. Avoid acidic cleaners.
  • Sealing: Annual or bi-annual sealer recommended for kitchens and bathrooms.
  • Protection: Use cutting boards and trivets; granite is scratch-resistant (Mohs 6–7) but may chip with heavy impact.

FAQ

Will a hot pot leave a mark on a Shaanxi Grey Granite kitchen countertop?

Shaanxi Grey Granite is known for its durability and resistance to heat, making it a popular choice for kitchen countertops. Generally, placing a hot pot directly on a granite countertop is unlikely to leave a mark or cause immediate damage due to its natural heat resistance. However, while granite can tolerate heat fairly well, its always a good practice to use trivets or hot pads to preserve the finish and avoid any potential for damage over time, such as discoloration or thermal shock, which might occur with very high temperatures or repeated exposure. Its also a good habit to protect the sealant on the granite, which can be more vulnerable than the stone itself.

If lemonade spills on a Shaanxi Grey Granite kitchen countertop, will it damage the surface?

Shaanxi Grey Granite is a dense and durable natural stone commonly used for kitchen countertops. However, like all natural stones, it is porous to some extent, which means it can absorb liquids and potentially stain if not properly sealed. Lemonade contains citric acid, which can etch or dull the surface of granite if left in contact for too long, especially if the sealant has worn off. To minimize the risk of damage: 1. Wipe up spills immediately using a soft cloth or paper towel. 2. Clean the area with a mild dish soap and water solution to remove any residual acidity. 3. Regularly seal the granite countertop to maintain its resistance to stains and etching. If lemonade does leave a mark, you may be able to restore the surface with a granite polishing compound, but its always best to act quickly to avoid any potential damage.

Can I use bleach when cleaning a Shaanxi Grey Granite kitchen countertop?

Using bleach on a Shaanxi Grey Granite countertop is not recommended. Although granite is a durable natural stone, bleach is a harsh chemical that can damage the surface by dulling the finish and potentially causing discoloration. It may also damage the sealant applied to the granite, which is crucial for protecting the stone from stains and moisture penetration. For cleaning granite countertops, it is best to use a pH-balanced cleaner specifically designed for natural stone, or a mild dish soap mixed with water. Always use a soft cloth or sponge to avoid scratching the surface, and be sure to dry the countertop thoroughly after cleaning to prevent water spots or streaks. Regularly resealing the countertop, according to the manufacturers recommendations, will also help maintain its appearance and protect it over time.

If I cut meat directly on my Shaanxi Grey Granite kitchen countertop, will it damage the surface?

Cutting meat directly on your Shaanxi Grey Granite countertop is not recommended. While granite is a durable and hard stone, it can still be susceptible to scratches and dulling over time, especially when exposed to sharp objects like knives. Additionally, cutting directly on the countertop can dull your knives faster and create an unsanitary surface for food preparation. Its best to use a cutting board to protect both the countertop and your knives, as well as to maintain a hygienic workspace.

Is Shaanxi Grey Granite with a polished surface good for house flooring?

Shaanxi Grey Granite can be a suitable option for house flooring, but there are several factors to consider: 1. **Durability**: Granite is a highly durable natural stone, resistant to scratches and general wear. Its well-suited for high-traffic areas such as floors. 2. **Aesthetics**: The polished surface of Shaanxi Grey Granite offers a sleek and elegant look, reflecting light and adding a sense of sophistication to interiors. 3. **Maintenance**: Polished granite is relatively easy to maintain. Regular cleaning with a mild detergent and water is typically sufficient. However, it may require periodic resealing to prevent staining. 4. **Safety**: Polished granite can be slippery when wet, which is a consideration for floors, especially in areas prone to moisture like kitchens and bathrooms. Using rugs or non-slip mats can mitigate this risk. 5. **Cost**: While granite flooring can be more expensive than some alternatives, its longevity and timeless appeal can justify the investment. 6. **Acoustic Properties**: Like many stone materials, granite does not absorb sound well, so it might contribute to a louder environment unless softened with rugs or other materials. Considering these points, if the polished appearance and characteristics of Shaanxi Grey Granite align with your design preferences and practical needs, it can be a great choice for house flooring.

Is Shaanxi Grey Granite a suitable choice for gravestones?

Shaanxi Grey Granite can be a suitable choice for gravestones for several reasons. Granite is a popular material for gravestones due to its durability, resistance to weathering, and aesthetic appeal. Here are some factors to consider when evaluating Shaanxi Grey Granite specifically: 1. **Durability:** Granite is one of the hardest natural stones, making it very durable and long-lasting. Shaanxi Grey Granite shares these properties, ensuring that the gravestone will withstand the elements over time. 2. **Appearance:** The grey color of this granite offers a neutral and elegant appearance, which is often preferred for gravestones. It can complement various designs and inscriptions. 3. **Maintenance:** Granite requires minimal maintenance, which is an important consideration for gravestones. It is easy to clean and resists staining and degradation. 4. **Cost:** The cost of Shaanxi Grey Granite may vary depending on your location and the specific supplier. It is important to compare prices and consider budget factors. 5. **Availability:** Check with local suppliers or monumental masons to ensure Shaanxi Grey Granite is available in your area and can be adequately sourced for your needs. Before making a decision, it might also be beneficial to consult with a professional monument maker or supplier to ensure that the specific type of granite you choose meets all your expectations and requirements for a gravestone.

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