Oran Onyx is a striking and translucent natural stone, prominently featuring warm golden amber tones that make it a sought-after material for various decorative applications. Quarried in Oran, Algeria, this stone is renowned for its unique blend of colors and patterns, including shades of golden yellow, amber, honey, cream, and occasional highlights of light brown or white.

Physical and Mechanical Properties:

• Water Absorption: Approximately 0.3% - 0.85%, indicating moderate porosity and some susceptibility to water staining if not sealed properly.
• Density: Ranges between 2.62 to 2.69 g/cm³, which is typical for onyx stones and implies a moderate weight.
• Flexural Strength: Approximately 6 - 9 MPa, indicating it possesses adequate flexibility for decorative applications but is not ideal for structural purposes.
• Compressive Strength: Around 40 - 55 MPa, showing it can withstand considerable pressure but is still less robust than granite or marble.
• Hardness: Typically measures 3 - 4 on the Mohs scale, indicating it is softer than many stones and prone to scratching.
• Porosity: Moderate, requiring sealing to resist stains and moisture penetration.
• Slip Resistance: Relatively low, making it less suitable for high-traffic or wet areas without appropriate surface texturing.

Chemical and Mineral Compositions (% by weight):

• Calcium Carbonate (CaCO3): Typically 90% - 95%
• Silica (SiO2): Approximately 1% - 5%
• Magnesium Carbonate (MgCO3): Trace amounts
• Iron Oxides (FeO/Fe2O3): Trace amounts, contributing to color variation

Usage:

• Interior Applications: Suitable for wall cladding, backsplashes, vanity tops, fireplace surrounds, and certain types of flooring where traffic and wear are minimal.
• Decorative Features: Used in creating luxurious decorative pieces, sculptures, and translucent panels.
• Lighting Fixtures: Particularly emphasizes light transmission, making it perfect for lamps and illuminated panels.

Maintenance:

• Sealing: Regular sealing recommended to protect against staining and moisture.
• Cleaning: Use pH-neutral cleansers to avoid chemical etching or damage.
• Avoid Harsh Chemicals: Acidic or abrasive cleaning agents can easily damage the stone's surface.

Cutting Sizes (cm):

• Custom sizes are available based on project requirements. Commonly available sizes include:
• Slabs: Typically ranged between 120 cm x 240 cm
• Tiles: Standard sizes often include 30 cm x 30 cm, 30 cm x 60 cm, etc.

Common Surface Finish Options:

• Polished: Enhances the stone's color and translucency, ideal for decorative uses.
• Honed: Offers a matte finish, reducing slip risk in some applications.
• Leathered/Brushed: Provides a textured surface with a unique appearance.

Overall, Oran Onyx is mainly used for its aesthetic appeal in interior design projects rather than functional construction, given its comparatively softer composition and the stunning visual impact it offers when backlit or used as a decorative feature. Proper care and maintenance are essential to preserve its beauty and functionality over time.