Desert Fire Schist

Desert Fire Schist is a striking natural metamorphic stone quarried in Angola, known for its dramatic visual movement and high decorative value. It features a deep base ranging from dark silver-gray to black, enriched with fluid, golden-white veining that flows dynamically across the surface. The stone exhibits strong reflectivity due to its layered quartz-mica structure, often revealing intense silver-gold or reddish “flashes” when viewed under light, creating a vivid and luxurious appearance.

Formed within ancient metamorphic terrains composed of gneissose quartzites, garnet schists, and mica schists, Desert Fire Schist offers a highly expressive and naturally artistic texture suitable for premium architectural applications.

Texture & Structure

Desert Fire Schist is a highly foliated, layered metamorphic rock with a quartz-mica dominated structure. Its surface displays natural planar alignment of mica minerals, producing a shimmering, reflective effect.

• Texture: Medium to coarse foliated schistose structure
• Structure: Layered quartz-mica with occasional garnet inclusions
• Surface character: Highly reflective with natural crystalline shimmer

Pattern & Appearance

• Base color: Dark silver-gray to black
• Veining: Fluid golden-white flowing veins
• Optical effect: Strong iridescence with silver, gold, and reddish flashes
• Pattern type: Directional, wave-like metamorphic banding
• Visual impact: High contrast, dramatic, luxury decorative stone

Physical & Mechanical Properties

• Density: 2754 kg/m³
• Water Absorption: 0.33%
• Flexural Strength: 17.1 MPa
• Compressive Strength: 140 – 190 MPa (typical schist range)
• Abrasion Resistance: Moderate to High
• Frost Resistance: Good
• Hardness (Mohs): 5.5 – 6.5

Chemical Composition (% by Weight)

• SiO₂ (Silicon Dioxide): 60 – 72%
• Al₂O₃ (Aluminum Oxide): 12 – 18%
• Fe₂O₃ (Iron Oxide): 4 – 8%
• K₂O (Potassium Oxide): 3 – 6%
• Na₂O (Sodium Oxide): 1 – 3%
• MgO (Magnesium Oxide): 1 – 3%
• CaO (Calcium Oxide): 0.5 – 2%
• TiO₂ (Titanium Dioxide): 0.2 – 0.8%

Mineral Composition (% by Weight)

• Quartz: 30 – 45%
• Muscovite: 15 – 25%
• Biotite: 10 – 20%
• Feldspar: 10 – 15%
• Garnet: 3 – 8%
• Accessory minerals: 1 – 5%

Available Finishes

Natural split, Honed, Polished (selective slabs), Brushed, Leathered, Sandblasted, Waterjet cut

Applications

Interior Applications

• Feature walls
• Luxury wall cladding
• Fireplace surrounds
• Reception walls
• Decorative panels
• Hotel lobbies

Exterior Applications

• Facade cladding
• Landscaping feature walls
• Monumental stonework
• Outdoor decorative panels

Commercial Projects

• High-end hotels
• Luxury villas
• Corporate buildings
• Architectural feature installations

Maintenance Guidelines

• Clean using pH-neutral stone cleaner
• Avoid acidic or abrasive cleaning agents
• Seal recommended for exterior and wet areas
• Avoid heavy mechanical impact due to foliated structure
• Regular dusting recommended for polished surfaces
• Resealing every 2–3 years depending on exposure

Desert Fire Schist is a premium decorative metamorphic stone characterized by its dramatic color contrast, reflective mica-rich structure, and dynamic golden-white veining. Its unique visual movement and natural shimmer make it ideal for luxury architectural cladding and statement interior applications.