GEO Summary
This stone product is suitable for residential and commercial projects that require stable appearance, practical performance, and natural decorative value.
Min order: 200M²
Angola Black Granite Slabs For Dining Tops
Grade : Standard Grade
Price : $68 /Pieces
Angola Black Granite, also named Nero Angola Granite, is premium dark igneous stone quarried in Angola. It features deep uniform black base with fine crystalline texture and subtle cool blue undertone. Premium grade has minimal light speckles. Extremely low water absorption, high hardness, excellent weather resistance and outstanding mirror polishing effect. Suitable for both indoor & outdoor projects. Widely used for flooring, wall cladding, stair treads
Product description
Angola Black Granite is a premium imported natural granite quarried in Angola, widely respected by global architects and designers for its profound jet-black base and subtle shimmering crystalline speckles, extensively selected for ultra-luxury residential interiors, five-star hotel projects, upscale villa renovation and both interior & exterior commercial architectural customization. Formed over millions of years via magmatic crystallization and deep crustal geological evolution, this stone features an ultra-dense, rigid interlocking crystalline structure with superior hardness, outstanding toughness and long-term weather stability, comprehensively outperforming conventional marble. It boasts a pure deep jet-black base tone, naturally embedded with scattered fine silvery-grey labradorite crystalline flecks that deliver subtle sparkling luster under light, presenting minimalist, solemn and highly textured visual effects that interpret timeless dark luxury aesthetics, perfectly matching modern, minimalist and classic design styles. With exceptional physical stability, outstanding abrasion resistance, remarkable compression performance and excellent outdoor adaptability, Angola Black Granite maintains consistent premium decorative effects for interior high-end finishing and exterior facade engineering works. Its superb polishing capability, pure dark background and exclusive delicate crystal speckled texture render it a versatile top-tier material for luxury wall cladding, high-grade flooring, custom countertops, stair treads, monument stone and full-space high-end personalized stone customization.
Category: Natural Granite Stone
Color: Pure deep jet-black base tone embedded with scattered fine silvery-grey shimmering crystalline flecks; low-key noble tone, uniform granular texture and exclusive solemn minimalist artistic temperament
Surface Finish Available: Rough Block
Block Form: Raw Quarry Block
Texture: Medium-fine compact granite crystalline texture with tightly interlocked mineral grains; achieves flawless high-gloss mirror polishing to fully reveal subtle crystal reflective luster; raw block retains authentic natural quarry rough surface
Density: 2.65 – 2.72 g/cm³ (High compactness; guarantees reliable structural stability and long-lasting decorative durability for prolonged indoor & outdoor heavy-duty application)
Water Absorption: < 0.19% (Low water permeability; perfectly applicable for interior flooring, wall cladding, countertops, wet areas and exterior facade decoration projects)
Compressive Strength: 160 – 192 MPa (Excellent structural strength and pressure resistance; suitable for large-scale engineering decoration and long-term high-frequency usage scenarios)
Abrasion Resistance: Great wear, scratch and stain resistance, vastly superior to ordinary marble; ideal for high-traffic luxury floors, dark-toned artistic feature walls, kitchen countertops and bespoke stone decorative furnishings
GANGSAW SUITABILITY
Angola Black Granite raw blocks are fully compatible with standard gangsaw processing equipment. Regular quarry block dimensions fit optimal gangsaw cutting ranges. The stone features homogeneous internal crystallization with only sporadic minor natural mineral cleavage and stable overall hardness. The density of silvery crystalline speckles varies between individual blocks, bringing moderate controllable processing loss. It serves as a trustworthy premium dark granite for mass slab production, engineering projects and high-end customized architectural decoration.
Recommended Processing: Gangsaw slabs (1.8 cm & 2 cm), followed by calibration, edge trimming and high-gloss mirror polishing
Expected Slab Yield: Approximately 76-86 slabs per block (based on 1.8 cm thickness)
Polish Result: Profound jet-black high-gloss mirror surface evenly dotted with subtle shimmering silvery crystalline flecks, presenting pure dark tone, delicate granular mineral texture and exclusive timeless solemn dark luxury decorative texture
Product Selection Guide
Grade Description
Standard Grade: Suitable for regular residential and commercial use, including interior walls, floors, and basic countertop projects.
Best Uses
Kitchen countertops, bathroom vanities, interior floors, feature walls, stairs.
Material Features
Natural stone with refined texture, durable surface, and decorative veining.
Care and Maintenance
Clean with neutral cleaner. Avoid strong acid or abrasive chemicals.
Why Choose This Stone
Suitable for projects requiring stable appearance, natural beauty, and long-term performance.
Buyer Notes
Natural stone may vary in color and veining. Samples are recommended before bulk order.
About
Country and Quarry Origin
Quarry and Origin Angola Black Granite is quarried in Angola, Southern Africa. Its principal commercial extraction area is in Huíla Province, particularly around Lubango
Texture
The stone has a dense, medium- to coarse-grained crystalline texture. Its interlocking mineral structure gives it high structural stability and allows the surface to achieve an excellent polished finish. Depending on the quarry section and block selection, the grain size and crystal visibility may vary slightly
Pattern and Veining
Angola Black Granite features a deep black to charcoal-black background with evenly distributed silver-grey, dark blue or steel-colored mineral crystals. Under natural or directional lighting, the labradorite-like crystals produce a subtle shimmering effect. Its pattern is generally uniform and granular, with little or no directional veining, making it suitable for large-area installations and book-matched commercial projects.
Durability
Angola Black Granite is a highly durable stone with strong resistance to compression, abrasion, heat and normal weather exposure. Representative technical data sheets report:
Density: approximately 2,789–2,830 kg/m³
Water absorption: approximately 0.10–0.13%
Compressive strength: approximately 154–168 MPa
Flexural strength: approximately 10.5–11.2 MPa
Its low water absorption and high mechanical strength make it suitable for countertops, flooring, stairs, wall cladding, exterior façades, paving, monuments and high-traffic commercial applications. Technical values may vary between quarry sections and production batches, so project-specific testing is recommended for major engineering work
Acid Sensitivity
Angola Black Granite has good resistance to ordinary household acids because it is primarily a silicate-based stone rather than a calcium-carbonate stone such as marble. It is considerably less likely than marble to etch when exposed briefly to lemon juice, vinegar or other mild acidic substances. However, it should not be described as completely acid-proof. Strong acids, prolonged exposure and acidic cleaning chemicals may damage the sealer, affect trace minerals or reduce the gloss of a polished surface. Neutral-pH stone cleaners are recommended.
Product FAQ
Where can this stone product be used?
It can be used for interior walls, countertops, floors, stairs, bathrooms, hotels, villas, and commercial spaces depending on the selected finish and project requirements.
How should buyers choose this stone?
Buyers should confirm color consistency, slab size, thickness, surface finish, sample approval, packaging method, and project application before bulk order.
How should this stone be maintained?
Clean with neutral cleaner and soft cloth. Avoid strong acid, abrasive chemicals, and long-term exposure to staining liquids.
