| Stone Type | Queenston Limestone (Dolomitic) |
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| Geological Formation | Silurian / Ordovician |
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| Origin | Queenston Quarry, Niagara Escarpment, Ontario, Canada |
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| Primary Composition | Calcium Carbonate (CaCO₃), with Magnesium and Fossils |
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| Color Range | Light to dark grey, bluish tones, occasional fossil marks |
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| Texture | Fine to medium grain |
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| Finish Options | Split face, honed, polished, bush hammered, sawn |
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| Water Absorption | ~4–6% (ASTM C97) |
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| Compressive Strength | ~24,000 psi (ASTM C170) |
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| Flexural Strength | ~1,200 psi (ASTM C880) |
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| Density | ~160 lb/ft³ (ASTM C97) |
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| Abrasion Resistance | Moderate (ASTM C241) |
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| Slip Resistance | Meets safety standards when honed or textured |
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| Thermal Expansion | Low — performs well in freeze-thaw climates |
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| Weather Resistance | Excellent — suitable for exterior applications |
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| Workability | Cuts cleanly; ideal for custom carving and shaping |
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| Sustainability | Locally quarried; low embodied carbon |
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| Common Applications | Cladding, sills, lintels, wall panels, paving, restoration |
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| Historic Use | Brock’s Monument, Parliament Buildings, Rideau Hall |
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| Delivery Format | Custom block, slab, ashlar, dimensional cut |
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| Lead Time | Varies by volume and finish (typically 4–6 weeks) |
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| Minimum Order | Available by request; custom quotes |
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| Certifications | Available upon request (ASTM testing reports, LEED) |
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| Packaging | Palletized, banded, and protected for transport |
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| Installation Notes | Recommend mechanical anchoring or mortar bedding |
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| Maintenance | Low-maintenance; periodic sealing optional |
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