A direct comparison of slab yield, vein consistency, compressive strength, and container logistics for architectural stone.
Architectural buyers, stone fabricators, and tile wholesalers in Dubai, Riyadh, and Doha frequently evaluate both Pakistani and Iranian natural stones. For comprehensive technical specifications, physical load testing, and block dimensions, review our dedicated Iranian Silver Steam Marble Specification and Balochistan Marble & Green Onyx Dossier.
Geological Character
Natural stone procurement hinges on balancing aesthetics, structural integrity, and cutting recovery. For comprehensive technical specifications, physical load testing, and block dimensions, review our dedicated Iranian Silver Steam Marble Specification Dossier and Balochistan Marble & Green Onyx Dossier.
Balochistan Minerals operates direct quarry sourcing across two premier stone domains:
- Balochistan Marble (Pakistani Origin): Renowned for bright crystalline matrices, dense calcium carbonate crystallization, and warm mineral veining. Quarried predominantly in Loralai, Lasbela, and Khuzdar districts.
- Iranian Premium Marble (Persian Origin): Celebrated for refined sedimentary tones, deep neutral charcoals, and delicate linear veining. Sourced from world-renowned quarry belts in Isfahan and Shiraz, and handled through Balochistan Minerals’ dedicated transit corridor.
Product Comparison
| Stone Variety | Origin | Color & Matrix | Best Suited For |
|---|---|---|---|
| Silver Steam | Iran | Luminous white with soft silver-grey linear veins | Luxury hotel lobbies, vanity countertops, feature walls |
| Pietra Grey | Iran | Deep charcoal ground with crisp white calcic veins | Contemporary commercial flooring, bathroom cladding |
| Persian Silk Tundra Grey | Iran | Muted ash-grey with tonal clouding and fine veining | High-traffic residential floors, interior wall panels |
| Pakistani White Marble | Balochistan | Milky-white calcite matrix with subtle grey streaks | Standard tile fabrication, stairs, exterior paving |
Physical Durability Benchmarks
Both stone categories demonstrate high mechanical resistance suitable for heavy commercial foot traffic:
- Compressive Strength: 110 – 140 MPa (ASTM C170), ensuring robust load-bearing capability.
- Water Absorption: Under 0.25% by weight (ASTM C97), preventing moisture stains and efflorescence.
- Density: 2,680 – 2,740 kg/m³, providing clean edges when cutting with bridge saws or waterjet cutters.
Silver Steam & Onyx Technical Dossiers
Architectural GradeBalochistan Minerals supplies first-choice quarry blocks and calibrated gangsaw slabs for luxury commercial, hospitality, and residential development. Inspect certified ASTM test reports, flexural strength ratings, and book-matching options.
Packaging & Crate Standards
Balochistan Minerals provides physical inspection at our central stockyards in Quetta and Hub:
- Quarry Blocks (Gang-saw size): Regular rectangular blocks (2.4m – 3.2m length x 1.4m – 1.9m height) without structural fissures, inspected via sonic testing upon request.
- Polished Slabs (20mm & 30mm): Book-matched and slip-matched slabs packaged into reinforced, fumigated wooden bundles (A-frames) with anti-scratch protective film.
- Container Payload: 20-foot heavy-rated containers carry up to 27 MT (approx. 450–480 m² of 20mm slabs, or 300–320 m² of 30mm slabs).
Frequently Asked Questions
How does Silver Steam marble compare to Italian Silk Georgette or Iranian Pietra Grey?
Silver Steam marble offers a luminous chalk-white to soft silver crystalline background with linear parallel veining strikingly similar to Italian Silk Georgette, but at substantially lower square-meter fabrication costs. Unlike the deep charcoal of Pietra Grey, Silver Steam reflects natural light, making it ideal for hotel foyers, expansive living areas, and book-matched feature walls.
What standard gangsaw slab thicknesses and finishes are available for export?
Balochistan Minerals produces calibrated gangsaw slabs in 20 mm (2.0 cm) and 30 mm (3.0 cm) standard export thicknesses, with custom 40–50 mm cuts available upon request. Available surface treatments include mirror high-gloss polished (95+ gloss units), honed matte, brushed antique, and flamed architectural finishes.
How are marble blocks inspected and graded for cracks or veining before seafreight?
Blocks are squared with diamond wire saws at quarry staging yards in Quetta and Hub. Each block undergoes water-washing and optical crack inspection; ultrasonic velocity testing is available for high-value architectural contracts. Blocks are categorized into First Choice (uniform veining, zero open cracks) and Commercial Choice.
What fumigation and international crating standards are used for slab shipments?
Slabs are packaged into heavy-duty reinforced wooden A-frame bundles treated in accordance with ISPM-15 heat treatment and fumigation standards. Each bundle is lined with polyethylene moisture barriers and closed-cell EVA foam spacers to eliminate surface rubbing and edge chipping during open ocean container transit.
Explore Available Marble Inventory & Request Slabs Photos
Inspect live block dimensions, slab bundle photos, and FOB Karachi container quotes directly with our stone export team.
View Marble Catalog