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Natural Stone Knowledge Graph

Interactive B2B material entity network linking natural quarry deposits, petrographic classifications, physical engineering parameters, and architectural facade applications.

1. Quartzite & Slate Ledger Stone Entity

Petrographic Category: Metamorphic Rock (Foliated Metamorphic Slate / Quartzite)

Physical Parameters: Compressive Strength ≥ 120 MPa, Water Absorption ≤ 0.45%, Mohs Hardness 6.0 - 7.0.

ASTM C880ASTM C170Quarry Split

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2. Natural Travertine & Limestone Entity

Petrographic Category: Sedimentary Carbonate Rock (Calcium Carbonate Deposit)

Physical Parameters: Bulk Density ≥ 2,350 kg/m³, Flexural Strength ≥ 7.5 MPa, Freeze-Thaw Resistant.

ASTM C568Vein-CutTumbled Finish

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3. Architectural Sandstone & Wall Veneer Entity

Petrographic Category: Sedimentary Clastic Rock (Quartz & Feldspar Grains)

Physical Parameters: Thermal Conductivity 1.8 W/m·K, Natural Slip Resistance, Fireproof Class A1.

ASTM C616Earth-ToneCustom Cut

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4. Physical Testing Standards Matrix

Cross-verified engineering parameters matching global architectural procurement specs:

ASTM C97: Absorption & Bulk Specific Gravity Test
ASTM C170: Compressive Strength of Natural Building Stone
ASTM C99: Modulus of Rupture Testing Protocol
EN 1469: European Standard for Natural Stone Cladding Slabs

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