EN
Castle Grey Marble, also known as Tundra Grey and Regan Grey Marble, is a popular Turkish natural marble featuring elegant ash grey backgrounds with silver and semi-white veining, widely used for flooring, wall cladding, countertops and luxury architectural decoration.
| Material Type | Marble |
| Origin | Turkey (Sutculer/Aksu, Isparta) |
| Primary Color | Grey |
| Accent Color | Beige, Grey, Silver, Semi White |
| Alternative Names | Regan Grey Marble, Castle Light Grey Marble, Tundra Grey Marble, Ballot Grey Marble, Lange Grey Marble, Tundra Gray Marble, Joyace Old Mine Castle Grey Marble Chinese Name: 古堡灰, 里根灰, 嘉岩老矿古堡灰 |
| Available Finishes | Polished, Bush Hammered, Tumbled, Brushed, Honed, Split, Machine Cut, Natural Surface, Sandblasted, Combed, Leathered, Water Jet, Filled, Chiseled, Pickling |
| Mohs Hardness | 3-4 |
| Density | 2610 Kg/m³ |
| Water Absorption | 0.80% By weight |
| Flexural Strength | 13.94 MPa |
| Compressive Strength | 67.05 - 68.03 MPa |
| 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, cobbles, pavers |
| Calcite | 88% |
| Dolomite | 5% |
| Quartz | 3% |
| Mica | 2% |
| Other minerals | 2% |
| Calcium oxide (CaO) | 54% |
| Magnesium oxide (MgO) | 4% |
| Silicon dioxide (SiO₂) | 1% |
| Aluminum oxide (Al₂O₃) | 0.5% |
| Iron oxide (Fe₂O₃) | 0.3% |
| Sodium oxide (Na₂O) | 0.1% |
| Potassium oxide (K₂O) | 0.05% |
| Other compounds | 40.15% |
Castle Grey Marble is an elegant natural marble quarried in Sutculer/Aksu, Isparta, Turkey. It is widely known in global stone market also as Tundra Grey Marble, Regan Grey Marble, Ballot Grey Marble and Lange Grey Marble.
This premium stone features ash grey & earthy grey base with flowing silver, semi-white and subtle beige veining. Dynamic light & dark grey veins bring depth and luxury to any space. With balanced texture and timeless grey tone, Castle Grey Marble is extremely versatile for residential and commercial architectural design.
We supply big marble slabs, cut-to-size tiles, countertops, wall panels, stairs, window sills, fireplace surrounds and custom carved stone products. Multiple surface finishes are available to meet different project requirements.
Castle Grey Marble works great for interior and exterior architectural projects.
Neutral ash grey base with natural flowing silver-white veins, timeless luxury style, matches modern, minimalist and classic interior design. Multiple surface options from high gloss polished to matte honed / leather finish. Stable physical performance for flooring, wall cladding and countertop projects. Available in big raw slabs, we can do custom cut-to-size for commercial & villa projects. Consistent mine supply for bulk order, suitable for architects, contractors, wholesalers & stone distributors.
Q1: Where is Castle Grey Marble quarried? A: It comes from Sutculer/Aksu, Isparta, Turkey, also called Tundra Grey Marble globally.
Q2: Is Castle Grey Marble suitable for kitchen countertops? A: Yes. It is natural marble. We suggest sealing the surface regularly because marble has porosity. Avoid strong acid cleaning agents.
Q3: What finishes do you offer? A: Polished, honed, leathered, brushed, bush hammered, sandblasted, waterjet and other custom surface treatments.
Q4: Can you provide custom size cutting? A: Yes. We supply raw big slabs and custom fabricated products including tiles, countertops, stairs, fireplace panels.
Q5: Will there be color difference between slabs? A: Castle Grey Marble is natural stone. Veining and shade vary from block to block. We provide slab photos for selection before shipment.
Mission: To deliver superior stone materials through precise craftsmanship, sustainable sourcing, and innovative surface technologies—enhancing the quality, durability, and beauty of every space we touch.
Vision: To become a global leader in high-end stone solutions, redefining modern architecture and interior design with materials that combine natural elegance, advanced performance, and environmental responsibility.
Slogan: Stronger. Smarter. More Beautiful. Better.
