Didima Dark Marble

Didima Dark Marble is a visually appealing natural stone characterized by a dark beige to brown-grey base tone, sometimes described as "hazelnut." This marble originates from Didyma, Argolis in the Peloponnese region of Greece. Its appearance is marked by soft, cloudy veining with occasional lighter streaks or small white areas, providing a calm yet slightly dynamic pattern. Structurally, it is a dolomitic marble, which consists mainly of dolomite with minor calcite, imparting greater strength and resistance compared to marbles composed primarily of calcite.

Physical and Mechanical Properties:

• Apparent Density (EN 1936): 2740 kg/m³
• Open Porosity (EN 1936): 1.1% vol.
• Water Absorption at Atmospheric Pressure (EN 13755): 0.3% wt.
• Compressive Strength (EN 1342 & EN 1926): 169 MPa
• Flexural Strength under Concentrated Load (EN 12372): 20.1 MPa
• Breaking Load at Dowel Hole (EN 13364): 2800 N
• Abrasion Resistance (EN 14157 – Method B): 7896 mm³
• Rupture Energy (EN 14158): 3 Joules
• Frost Resistance (EN 12371 & EN 12372): 18.1 MPa
• Hardness: Typically rated around 3-4 on the Mohs scale, indicative of its relative strength compared to softer marbles
• Porosity: Low porosity, contributes to its resistance against staining and weathering
• Slip Resistance: Generally moderate to low, depending on the finish; textured finishes enhance slip resistance

Chemical and Mineral Compositions:

Mineralogical Description (EN 12407 / EN 12670): Dolomite

Mineralogical Composition:

• 91% Dolomite
• 9% Calcite

Chemical Analysis (% in dry substance):

• SiO₂: 0.65
• Al₂O₃: <0.5
• Fe₂O₃: 0.10
• CaO: 35.00
• MgO: 15.60
• MnO: <0.10
• TiO₂: <0.10
• K₂O: 0.73
• Na₂O: 0.28
• LOI: 45.85

Usage:

• Interior Applications: Well-suited for flooring, wall cladding, bathroom vanities, and kitchen countertops due to its aesthetic appeal and strength.
• Exterior Applications: Used in facade cladding and landscaping features, though consideration is needed for slip resistance in areas exposed to rain.
• Decorative Uses: Ideal for sculptures, fireplaces, and various artistic applications.

Maintenance:

• Regular cleaning with a pH-neutral stone cleaner.
• Periodic sealing to protect against staining, especially in high-use areas.
• Avoid acidic or abrasive cleaning agents to prevent surface etching.

Cutting Sizes:

Typically available in standard tile sizes (e.g., 30x30 cm, 60x60 cm), slabs, and custom dimensions as needed for specific projects.

Common Surface Finish Options:

• Polished: Enhances the stone's natural look and color, ideal for interiors.
• Honed: A matte finish that offers a more subdued appearance and higher slip resistance.
• Brushed: Adds texture and depth to the stone, suitable for both interior and exterior applications.
• Sandblasted: Provides a rougher surface that enhances slip resistance, excellent for outdoor use.

Didima Dark Marble's blend of aesthetic appeal and structural resilience makes it a desirable option for a wide range of architectural and decorative uses. Its maintenance is relatively straightforward, ensuring its longevity and continued beauty in various environments.