Pannonia Green Schist is a striking, high-quality natural stone distinguished by its rich dark green background accented with light jade green and white grains that gracefully weave across the surface. The interplay of colors creates a visually textured, dynamic pattern, enhancing its sense of depth and vibrancy. Quarried in Rechnitz, a historic town in southern Burgenland, Austria, near the Geschriebenstein Mountain, Pannonia Green is sometimes marketed as a slate due to its fine foliation. However, its true geological classification is chlorite schist, a metamorphic rock characterized by the presence of aligned platy minerals.

Texture and Pattern:

Texture: Fine- to medium-grained, moderately foliated

Pattern: Flowing, soft veining with light green and white mineral grains distributed across a deep green matrix

Finish: Naturally split layers, slightly rough exfoliated surfaces, or sawn surfaces, with options for polishing or brushing for enhanced applications

Technical Properties:

• Water Absorption: 0.34 %
• Density: 2,930 kg/m³
• Flexural Strength: 19.9 MPa
• Compressive Strength: 94.8 MPa
• Hardness (Mohs Scale): Approximately 5.5–6 (typical for chlorite schists)

Chemical and Mineral Composition (% by weight):

• Chlorite (clinochlore dominant): 45–55%
• Quartz: 20–25%
• Plagioclase Feldspar: 10–15%
• Muscovite/Sericite: 5–8%
• Accessory minerals (magnetite, epidote, titanite): ~2–3%

Chemical Analysis (Approximate):

• SiO₂ (Silicon Dioxide): 45–50%
• Al₂O₃ (Aluminum Oxide): 12–16%
• Fe₂O₃ (Iron Oxide): 8–12%
• MgO (Magnesium Oxide): 5–8%
• CaO (Calcium Oxide): 2–4%
• Na₂O + K₂O (Sodium and Potassium Oxides): 2–3%

Cutting Sizes (Standard Production):

Tiles:

• 30 × 60 cm (12" × 24")
• 40 × 40 cm (16" × 16")
• 60 × 60 cm (24" × 24")
• 40 × 80 cm (16" × 32")
• Custom sizes on request

Slabs:

• Typical thicknesses: 2 cm (3/4"), 3 cm (1 1/4")
• Large formats possible depending on block quality

Surface Finishes Available:

• Natural split (cleft)
• Honed (smooth, matte)
• Brushed (antique finish)
• Polished (brings out deeper colors)
• Flamed (for slip resistance, especially outdoor use)
• Sandblasted

Usage Applications:

Interior:

• Flooring
• Wall cladding
• Bathroom vanities
• Kitchen countertops (with proper sealing)
• Staircases

Exterior:

• Facade cladding
• Outdoor paving
• Landscaping elements
• Pool surrounds
• Pannonia Green Schist’s low water absorption and high compressive strength make it highly suitable for freeze-thaw climates and heavy-duty flooring applications.

Maintenance:

Regular cleaning with pH-neutral stone cleaners

Periodic sealing recommended (especially for polished and honed surfaces) to protect from staining

Avoid acidic cleaners which may etch the surface Occasional re-brushing or re-honing can refresh heavily used areas

Summary:

Pannonia Green Schist blends vibrant aesthetics with robust mechanical properties, offering durability and elegance in both modern and traditional architecture. Whether used indoors or outdoors, it brings a distinctive natural beauty that stands the test of time.