✦ NATURAL BLACK MARBLE · CHINA
Silver Dragon Marble Slab
Also known as China Nero Portoro Marble
✦ 100% Natural Stone
✦ MOQ 50 m²
✦ Polished · Honed · Brushed
✦ Custom Cut-to-Size
Applications
Where Silver Dragon Marble Works Best
Versatile across residential luxury, commercial hospitality, and high-end retail environments.
Kitchen Countertops & Islands
The dark base is forgiving in busy kitchens. Polished finish is easy to clean. Seal annually. A striking choice for both modern and transitional kitchen styles.
Bathroom Vanity Tops & Walls
Creates a dramatic, spa-like atmosphere. Pair with brushed gold or matte-black fixtures. Honed finish on floors for safety.
Feature Wall Cladding
Large-format polished slabs create bold statement walls. Bookmatched panels produce a symmetrical vein effect that elevates hotel lobbies, suites, and living rooms.
Flooring
Dramatic in entrance halls and living areas. Honed or brushed finish recommended for floors. The horizontal vein direction can visually widen a space when laid across the room.
Staircases & Steps
Polished Silver Dragon treads create a grand, sculptural staircase. Use anti-slip nose edging profiles on honed treads for safety in high-traffic areas.
Hospitality & Commercial
A favored choice for five-star hotel lobbies, luxury retail, high-end F&B interiors, and premium residential developments across the Middle East, Europe, and Asia.
SPECIFICATIONS
Technical Details
Complete stone data to support your project planning, specification, and procurement teams.
| Stone Type | Natural Marble (Metamorphic Rock) |
| Trade Name | Silver Dragon Marble |
| Also Known As | Silver Portoro Marble · China Nero Portoro · Silver White Dragon · 45° Black Marble |
| Origin | Guangxi Province, China |
| Background Color | Deep Black / Dark Charcoal |
| Vein Color & Pattern | Silver-White · Predominantly Horizontal · Linear Flow |
| Slab Sizes (Typical) | 240 × 120 cm up to 270 × 180 cm |
| Tile Sizes | 30×30 · 30×60 · 60×60 · 60×120 cm · Custom |
| Available Thicknesses | 10 mm · 12 mm (tiles) · 15 mm · 18 mm · 20 mm (slabs) |
| Surface Finishes | Polished · Honed · Brushed/Leathered · Bush Hammered · Sandblasted · Flamed · Antique |
| Hardness (Mohs) | 3 – 4 |
| Density | 2.59 – 2.75 g/cm³ |
| Compressive Strength | ≥ 120 MPa (typical: 200 MPa) |
| Flexural Strength | ≥ 8 MPa |
| Water Absorption | ≤ 0.5% |
| Radiation Level | Class A — Safe for indoor residential use |
| Certificates Available | CE · Radiation Test Report · SGS · MSDS · CO · Form-E |
| Min Order Quantity | 50 m² (slabs) · 30 m² (tiles) · 1 slab (samples) |
| Lead Time | In-stock orders: 7–10 days · Custom orders: 15–25 days |
| Packaging | Seaworthy wooden crates with foam padding + metal straps (fumigation available) |
Surface Finishes
Choose Your Finish
Each finish transforms how the stone looks and feels — and determines the best application.
Polished
Mirror-smooth, high-gloss surface. Deepens the black to near obsidian and makes silver veins pop with maximum contrast and luminosity.
Best for: Countertops · Feature walls · Tabletops
Honed
Soft matte surface — gives the stone a moody, understated character. Reduces glare and offers better grip underfoot. Less reflective than polished.
Brushed / Leathered
Wire-brushed textured surface that reveals the stone's grain. Adds tactile depth and a raw, artisanal quality. Conceals minor wear over time.
Stone Comparison
Silver Dragon vs. Similar Black Marbles
How does Silver Dragon Marble compare to other premium black natural stones designers commonly specify?
| Stone | Origin | Vein Style | Background | Price Range | Best For |
|---|---|---|---|---|---|
| Silver Dragon Marble | Guangxi, China | Horizontal silver-white, linear & flowing | Deep black / dark charcoal | ★ Most Competitive | Large projects, countertops, feature walls |
| Nero Marquina | Basque, Spain | Irregular scattered white veins | Pure matte black | Premium | Accent tiles, small decorative areas |
| Portoro Gold (Italy) | Liguria, Italy | Bold gold & white irregular veins | Deep black | Luxury / Very High | High-statement feature pieces |
| Black Forest Marble | China | Fine scattered white specks | Jet black | Competitive | Floors, backsplashes |
| Black Marquina (China) | China | Fine white random veins | Dark grey-black | Competitive | Tiles, wall cladding |
Why Choose Us
Factory-Direct. Quality-Certified. Globally Shipped.
We work directly with Guangxi quarry partners and operate our own processing facility — giving you better stone, better consistency, and better pricing.
Relationships with over 40 quarry owners in Guangxi give us first access to the best blocks — consistent colour, clean structure, and priority allocation for large orders.
Diamond gang saws, CNC bridge saws, and auto-polishing lines allow us to produce finished slabs, cut-to-size tiles, countertops, and custom shapes under one roof.
Production QC checks each piece for flatness, thickness, glossiness, and edge finish. A second check from our export team reviews the final order piece by piece before packing.
We supply CE certificates, radiation test reports, MSDS, certificate of origin (CO), Form-E, and fumigation certificates. Third-party SGS inspection available on request.
Shipping to the USA, Canada, UK, Australia, UAE, Singapore, and 40+ other markets. We handle all export documentation and can work with your nominated freight forwarder.
Explore Further
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FAQ
Frequently Asked Questions
Everything buyers and specifiers need to know about Silver Dragon Marble.
Q1: What is Silver Dragon Marble and where does it come from?
Q2: Is Silver Dragon Marble good for kitchen countertops?
Q3: What is the difference between Silver Dragon Marble and Nero Marquina?
Q4: What sizes and thicknesses are available?
Q5: How do I care for and maintain Silver Dragon Marble?
Q6: What shipping options do you offer and how long is the lead time?
Q7: Can Silver Dragon Marble be used outdoors?
Ready to Order Silver Dragon Marble?
Send us your project dimensions and we’ll return a detailed quote — including freight to your port — within 12 hours.
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About This Stone
Silver Dragon Marble: A Complete Buyer's Guide
Silver Dragon Marble — known in Chinese stone markets as 银白龙大理石 — is one of China’s most commercially successful premium black marbles. Quarried primarily in Guangxi Province, it has been exported to projects across the Middle East, Europe, North America, and Southeast Asia for over two decades.
What Makes Silver Dragon Marble Distinctive
The defining characteristic of Silver Dragon is its veining orientation. Unlike many black marbles where veins run diagonally or randomly, Silver Dragon features predominantly horizontal, flowing silver-white veins across a deep black background. This linear quality gives the stone a directional energy — almost like a landscape or a horizon — that designers use deliberately to elongate or ground a space. The veins range from fine hairlines to bold bands, occasionally clustering into denser formations that read as brushstrokes on the polished surface.
Geological Origin
Silver Dragon is a metamorphic carbonate rock (marble) formed when limestone underwent intense geological heat and pressure. The silver-white veining results from calcite and silica-rich mineral fluids migrating through fractures in the parent rock. Guangxi’s geological conditions produce a particularly dense, stable block structure, which contributes to Silver Dragon’s noted strength and workability. The stone is available in two sub-types: black base (deeper, more dramatic black) and dark grey base — both share the same horizontal vein character.
Design Applications & Pairings
Silver Dragon’s high-contrast monochrome palette pairs naturally with warm metals (brushed brass, aged bronze, copper) and with cool industrial materials (matte-black steel, concrete, smoked glass). The horizontal vein direction can be used strategically: installed with veins running perpendicular to the room’s longest axis, the stone visually widens a space; parallel to the longest axis, it elongates. In bookmatched wall panels, the mirrored vein pattern creates a Rorschach-like symmetry that is one of natural stone’s most distinctive design effects — impossible to replicate with any engineered material.
Silver Dragon vs. Nero Portoro (Italy)
Italian Nero Portoro is often cited as the world’s finest black marble with gold and white veining. Silver Dragon Marble draws frequent comparison because of its similar dark base and dramatic veining — China’s stone industry marketed it as “China Nero Portoro” for this reason. The Italian stone commands significantly higher prices and comes in much smaller block sizes. Silver Dragon offers a more accessible price point with larger slab availability, making it the practical specification choice for large-scale projects that want the visual impact of premium black marble without the cost constraints of Italian material.
Specifying for Large Projects
For hotel lobbies, commercial podiums, and residential developments requiring high volumes, Silver Dragon’s abundant quarry supply in Guangxi is a significant advantage. We maintain large block inventories from matched quarry runs, meaning your 500 m² lobby floor and matching wall panels can come from visually consistent material. We provide slab layout drawings, bookmatching plans, and can photograph all material for client approval before packing — standard practice for high-profile projects.