Description
C121N Crystal Stone, also known as Aligudarz Black Marble, is one of Iran’s luxurious and visually striking stones. It features a black background interspersed with irregular white and grey veins, giving it a distinctive and elegant appearance. This stone is quarried in the city of Aligudarz, located in Lorestan Province.
Physical and Chemical Characteristics
- Colour and Pattern: The stone has a black base with irregular white and grey veins, creating captivating and artistic natural patterns.
- Texture: Crystalline in nature, with a glossy and reflective surface thanks to its excellent polishability.
- Resistance: High compressive and abrasion resistance, making it suitable for high-traffic areas.
- Water Absorption: Very low, making it ideal for humid or wet environments.
- Polishability: Excellent polishing capability, resulting in a sleek, shiny surface.
- Density: High; the stone has a dense and durable structure.


Applications
Interior Spaces
- Wall Cladding: Suitable for interior walls, lobbies, and luxurious areas.
- Flooring: Can be used in the flooring of halls, lounges, and reception areas.
- Countertops and Cabinet Surfaces: Ideal for kitchen countertops and bathroom surfaces due to its moisture resistance.
- Fireplaces and Decorative Frames: Its unique patterns and colouration make it perfect for ornate applications and fireplace surrounds.

Exterior Spaces
- Building Façades: Due to its durability against environmental elements, it is suitable for exterior cladding.
- Bookmatch and Fourmatch Panels: Thanks to its natural veining, it’s an excellent choice for creating symmetrical designs using Bookmatch and Fourmatch methods, both indoors and outdoors.
Advantages
- Striking visual appeal with a dramatic black background and contrasting white veining
- High resistance to pressure and abrasion
- Minimal water absorption, ideal for wet areas
- Excellent surface polish and shine
Disadvantages
- Due to its dark colour, scratches and stains may be more visible, requiring careful maintenance
Important Notes
- In high-traffic areas, regular maintenance and care are essential to preserve its appearance.
- Due to its bold colouring and pattern, careful coordination with other design elements is recommended to achieve a harmonious interior or exterior look.
Stone Analysis
| Property | Value |
| Specific Gravity (g/cm³) | 2.7 – 2.9 |
| Compressive Strength (MPa) | 100 – 150 |
| Water Absorption (%) | 0.1 – 0.3 |
| Porosity (%) | 0.5 – 1.0 |

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