Black Cloud Onyx

Black Cloud Onyx is a visually stunning natural stone quarried primarily in Demirci, Manisa, Turkey. It is characterized by its dramatic color palette and translucent quality, making it a popular choice for various decorative applications. Below is a detailed description and a list of properties, compositions, usage, maintenance, and finishing options:

Colors and Appearance:

• Primary Colors: Deep charcoal, smoky grey, rich black
• Veining: Soft, cloud-like patterns in white, beige, or copper
• Translucency: Offers a striking effect when backlit

Physical and Mechanical Properties:

• Water Absorption: Typically low; depending on exact composition, around 0.18%–0.35%
• Density: Approximately 2.66–2.74 g/cm³
• Flexural Strength: About 14–17 MPa (varies by sample and quarry source)
• Compressive Strength: Roughly 90–110 MPa
• Hardness: Rates about 3–4 on the Mohs scale
• Porosity: Semi-translucent, with low to moderate porosity
• Slip Resistance: Generally low, making it less suitable for flooring in wet areas without proper treatment

Chemical and Mineral Composition (% by weight):

• Calcite (CaCO₃): Typically 90%–95%
• Carbon: Minor traces that contribute to darker shades
• Other Minerals: May include quartz, clay minerals, and iron oxides

Usage:

• Interior Surfaces: Wall cladding, countertops, backsplashes
• Decorative Objects: Table tops, sculptures, decorative panels
• Lighting Applications: Lamp bases, translucent panels for backlighting effect
• Suitable Settings: Residential interiors, luxury hotels, designer showrooms

Maintenance:

• Cleaning: Use mild, pH-balanced cleaners; avoid acidic or abrasive substances
• Sealing: Regular sealing recommended to protect against stains and enhance longevity
• Repairs: Professional restoration recommended for cracks or chips

Cutting Sizes (in cm):

• Standard slab dimensions vary, examples include:
• Slabs: 2 cm or 3 cm thickness
• Tiles: Common sizes like 30x30 cm, 60x60 cm, or custom cut to order

Common Surface Finish Options:

• Polished: Highly reflective, enhancing its natural vibrancy and veining
• Honed: Smooth, matte finish for a more subdued look
• Leathered: Texture adding depth and tactile quality
• Sandblasted: Provides a rougher surface with a matte appearance

Black Cloud Onyx offers a luxurious and elegant aesthetic, making it ideal for high-end interior applications. Given its natural beauty and translucency, it can become a focal point in design projects where lighting and visual effect are paramount. Proper maintenance and sealing are crucial to preserve its refined look, while understanding its mechanical properties will help in selecting the appropriate applications and finishes.