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Thunder Brown Porphyry

Brown - Porphyry

China

About

Item Details

Material Type:
Porphyry
Origin:
China (Fujian province)
Primary Color(s):
Brown
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:
China Brown Porphyry, Thunder Brown Granite, Thunder Brown Porfido, in China stone market:棕斑岩(zōng bān yán), Thunder Brown Porphyry
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:
≤ 0.45%
Density:
2650 – 2780 Kg/m³
Flexural Strength:
12 – 16 MPa
Compressive Strength:
160 – 200 MPa

Description

Thunder Brown Porphyry is a fine- to medium-grained igneous stone with coarse-grained phenocrysts (feldspar and occasional quartz) embedded in a dark brown to black silicate-rich matrix, accented with lighter hues. Quarried in Fujian Province, China, it is known for its robust performance, elegant rugged appearance, and textural contrast between matrix and crystals. This stone is ideal for architectural, landscape, and paving uses where a combination of strength and visual uniqueness is required.

Geological Characteristics

  • Rock Type: Volcanic / Igneous – Porphyritic texture
  • Matrix: Fine-grained silicate minerals (predominantly feldspathic and mafic)
  • Phenocrysts: Feldspar (orthoclase, plagioclase), minor quartz
  • Color Range: Dark brown to nearly black background with silver, beige, or light brown crystal inclusions

Texture & Pattern

Texture: Porphyritic – fine to medium grain base with large, visible crystals

Visual Pattern:

  • Speckled, rugged appearance
  • Inconsistent crystal distribution gives it a natural, irregular charm
  • Subtle color movement due to mineral variance

Physical & Mechanical Properties

  • Density .... 2.65 – 2.78 g/cm³
  • Water Absorption .... ≤ 0.45%
  • Compressive Strength .... 160 – 200 MPa
  • Flexural Strength .... 12 – 16 MPa
  • Abrasion Resistance .... High
  • Frost Resistance .... Excellent
  • Hardness (Mohs Scale) .... 6.5 – 7
  • Porosity .... Low to very low

Chemical Composition (% by weight)

  • SiO2 (Silica) .... 63 – 72%
  • Al2O3 (Alumina) .... 13 – 17%
  • K2O + Na2O .... 4 – 7%
  • Fe2O3 (Iron Oxide) .... 2 – 4%
  • MgO + CaO .... 2 – 3%
  • TiO2, MnO, P2O5 .... <1% (trace)

Mineralogical Composition (% by weight)

  • Feldspar (Orthoclase, Plagioclase) .... 50 – 60%
  • Quartz .... 10 – 20%
  • Biotite / Hornblende .... 10 – 15%
  • Others (Pyroxenes, Magnetite, etc.) .... 5 – 10%

Available Surface Finishes

Natural Split / Cleft:

  • Rugged, slip-resistant, weathered look
  • Common for outdoor paving and cladding

Flamed:

  • Thermally textured, slip-resistant
  • Excellent for external floors and wet zones

Brushed:

  • Lightly textured, antique appearance
  • Great for garden paths, decorative panels

Honed:

  • Smooth matte finish, shows detail of the pattern
  • Interior walls, lobbies, and calm design spaces

Polished:

  • Glossy, refined finish (less common due to the rugged nature of porphyry)
  • Niche use in modern designs

Sandblasted / Bush Hammered:

  • Uniform rough textures for high-traffic, anti-slip zones

Standard Cutting Sizes

Tiles (cm / inch equivalents):

  • 20x10 cm (8"x4")
  • 30x15 cm (12"x6")
  • 30x30 cm (12"x12")
  • 40x40 cm (16"x16")
  • 60x30 cm (24"x12")
  • 60x60 cm (24"x24")

Custom modular and polygonal sizes available

Thickness: 2 cm (3/4"), 3 cm (1-1/4"), 4–5 cm for heavy paving

Special cuts (curbs, cobbles, steps) available

Recommended Applications

  • Urban and residential paving stones, driveways, walkways
  • Exterior wall cladding Pool decks, public squares, plazas
  • Step treads, copings, curbstones
  • Interior accent walls (honed or brushed finishes)

Maintenance

Low maintenance stone

Clean with neutral pH cleaner; avoid acids

Natural finish requires no sealant; honed surfaces may be sealed to reduce staining

Resistant to weathering, frost, and traffic wear

FAQ

Can China's Thunder Brown Porphyry be used in landscaping?

Yes, Chinas Thunder Brown Porphyry can be used in landscaping. Porphyry is a type of igneous rock that is highly durable and has a unique texture and color. It is commonly used in landscaping projects for pathways, driveways, patios, and as decorative stones in gardens and outdoor spaces. The Thunder Brown variety from China specifically has a dark brown color with hints of gray and can add a natural and elegant look to any landscaping design.

What is the average hardness of China's Thunder Brown Porphyry?

There is no specific information available on the average hardness of Chinas Thunder Brown Porphyry. The hardness of natural stones can vary depending on several factors, including the location where it is quarried. To determine the hardness of Thunder Brown Porphyry in China, it would be best to refer to geological studies or consult with experts in the field.

Can China's Thunder Brown Porphyry be used exterior applications in very windy climates?

Chinas Thunder Brown Porphyry is a natural stone known for its durability and strength, making it suitable for various applications, including exterior use. However, when considering its use in very windy climates, there are a few factors to consider. 1. Wind Resistance: Chinas Thunder Brown Porphyry is a dense and hard stone, which helps it withstand environmental factors such as wind. Its resistance to chipping, cracking, and erosion makes it suitable for exterior applications in windy climates. 2. Proper Installation: Regardless of the stones strength, proper installation is crucial in windy climates. This includes using the correct adhesive, anchors, and techniques to ensure the stone is securely placed. Hiring experienced professionals who are familiar with windy climate installations is recommended. 3. Sealing and Maintenance: To enhance the stones resistance to wind and other elements, it is advisable to seal Chinas Thunder Brown Porphyry regularly. Sealing helps protect against water penetration, freeze-thaw cycles, and potential damage caused by wind-blown debris. 4. Consider Location: If the specific project is in an area with extreme and sustained high winds, additional precautions may be necessary. In some cases, architectural designs may need to incorporate wind barriers, windbreaks, or other protective measures. Overall, while Chinas Thunder Brown Porphyry can be used in exterior applications in windy climates, it is essential to ensure proper installation, maintenance, and consideration of the locations specific wind conditions. Employing professional advice and opting for proper installation techniques will help maximize the stones longevity and performance in such environments.

Can China's Thunder Brown Porphyry be used in a bathroom?

Yes, Chinas Thunder Brown Porphyry can be used in a bathroom. Porphyry is a natural stone that is durable, heat-resistant, and has low water absorption. It is commonly used in various construction and architectural applications, including flooring, wall cladding, countertops, and bathroom surfaces. Its strength and resistance to moisture make it suitable for bathroom environments where it can withstand frequent exposure to water and humidity. Additionally, Thunder Brown Porphyrys attractive appearance, with its unique mix of colors and textures, can add style and elegance to bathroom design.

What grade is China's Thunder Brown Porphyry?

There is no standardized grading system for porphyry stones like Chinas Thunder Brown Porphyry. The grading of porphyry stones is often subjective and varies depending on factors such as color, pattern, texture, and overall quality. It is best to consult with a supplier or expert in the field for specific grading information related to Chinas Thunder Brown Porphyry.

Can China's Thunder Brown Porphyry be used outdoors?

Yes, Chinas Thunder Brown Porphyry can be used outdoors. It is a durable and weather-resistant material that is commonly used for various outdoor applications such as paving, walkways, driveways, patios, pool decks, and landscape projects. Its natural color variations and textured surface can add a unique and aesthetic appeal to outdoor spaces. Additionally, its high compressive strength makes it suitable for heavy foot traffic and outdoor conditions.

Are there color variations of China's Thunder Brown Porphyry?

Yes, there are color variations of Chinas Thunder Brown Porphyry. The color of Thunder Brown Porphyry can vary from light brown to dark brown, with some stones having a reddish or purple hue. The specific color variation can depend on factors such as the quarry location and the mineral composition of the stone.

How thick is China's Thunder Brown Porphyry slabs?

I do not have access to up-to-date information on the thickness of Chinas Thunder Brown Porphyry slabs. However, according to several stone suppliers, the standard thickness of Thunder Brown Porphyry slabs is 2 centimeters (0.79 inches) and 3 centimeters (1.18 inches). However, thicker slabs may also be available on-demand. It is recommended to check with the specific supplier for the thicknesses they offer.

Is China's Thunder Brown Porphyry an expensive stone?

I dont have access to the current market prices of Thunder Brown Porphyry. However, in general, the price of natural stones depends on various factors such as availability, rarity, quality, and demand. It is best to consult a professional stone supplier or dealer for current prices and specific details about this stone.

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