Black Agate presents a velvety near black field, its polished surface catching light to reveal jewel like depth and a glassy sheen that elevates a space into a dramatic, sophisticated focal statement brimming with nocturnal elegance. Wavy banding and translucent veils whisper beneath the surface — each curving stripe and smoky filament composes a singular topography of light and shadow that reveals hidden strata and rewards attentive viewing with intimate, sculptural detail. Best specified as a luxury decorative material, Black Agate excels in backlit feature walls, reception desks, bar fronts, countertops, vanity tops, and bespoke furniture inlays—applications that exploit its translucency, depth, and jewel like presence. Its inherent hardness, low water absorption, and polishability render it suitable for illuminated focal surfaces and occasional use countertops—provided thickness, backing, and fabrication are engineered to control impact, thermal movement, and long term durability.
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Typical 150–250 MPa for dense quartz‑based material; agate/onyx‑type material may test lower (≈50–120 MPa) — test methods: ASTM C170 / EN 1926 (indicative values; confirm by batch testing).
2.55–2.70 g/cm³ (2,550–2,700 kg/m³)
Typically <0.1% (near non‑porous for dense agate/quartz surfaces)
Approximately 15–29 × 10⁻⁶ /°C (linear coefficient; reference EN 14617‑11; confirm for specific product and lamination)
Approximately 30–70 MPa for dense quartz‑based material; softer agate/onyx‑type material may be ≈7–15 MPa — test methods: ASTM C880 / EN 12372 (indicative; confirm by batch testing).
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