Detailed Specifications
| Stone Type | Queenston Limestone (Dolomitic) |
|---|---|
| Geological Formation | Silurian (Lockport Formation) — Gasport Member |
| Origin | Queenston Quarry, Niagara Escarpment, Ontario, Canada |
| Primary Composition | Calcitic Dolomite with Crinoidal Fossils |
| Color Range | Light grey to buff; weathers to silver-grey |
| Texture | Medium-crystalline; crinoidal structure |
| Finish Options | Split face, sawn, bush hammered, honed, guillotined |
| Water Absorption | 0.81 – 0.97% (Lab tested) |
| Compressive Strength | 14,500 – 15,625 psi (Average: 14,900 psi) |
| Flexural Strength | Not specified; transverse strength not tested for this quarry |
| Density | 163 – 166 lb/ft³ |
| Abrasion Resistance | Abrasive Hardness: 15.4 – 18.7 |
| Slip Resistance | Suitable for pedestrian areas when textured |
| Thermal Expansion | Performs well in freeze-thaw climates; used in heritage structures |
| Weather Resistance | Excellent; stone used in 19th-century structures remains well preserved |
| Workability | Highly workable; suitable for sawing, carving, and detailed fabrication |
| Sustainability | Locally sourced in Ontario; durable and long-lasting |
| Common Applications | Institutional and civic architecture, cladding, monuments, restoration |
| Historic Use | Brock Monument, Parliament Buildings, Welland Canals, Queen’s University |
| Delivery Format | Block, slab, ashlar, split-face, dimensional cut |
| Lead Time | Typically 4 – 6 weeks depending on cut and volume |
| Minimum Order | Custom quotes available; small and large volumes supported |
| Certifications | Tested by Ontario Department of Mines; ASTM data available upon request |
| Packaging | Palletized and banded; suitable for transport by truck or rail |
| Installation Notes | Use mechanical anchoring for large slabs; mortar bedding for veneers |
| Maintenance | Very low maintenance; periodic cleaning or sealing optional |
Material Comparison:
Queenston vs Indiana Limestone
| Property | Queenston Limestone | Indiana Limestone |
|---|---|---|
| Stone Type | Dolomitic Limestone | Oolitic Limestone |
| Compressive Strength (psi) | 14,500 – 15,625 (avg. 14,900) | 6,425 – 7,000 (avg. 6,770) |
| Water Absorption | 0.81 – 0.97% | 4.01% |
| Bulk Specific Gravity | 2.62 – 2.66 | 2.33 |
| Weight per Cubic Foot | 163 – 166 lbs | 145 lbs |
| Abrasion Resistance | Abrasive Hardness: 15.4 – 18.7 | Abrasive Hardness: 8.2 |
| Color | Light grey to buff; silver-grey patina | Buff to light grey |
| Durability | Very high; used since 1837 in major structures | Moderate; softer, more porous |
| Workability | Harder, but still easily sawn and carved | Softer and easier to tool |
| Notable Use Cases | Parliament Buildings (Ottawa & Toronto), Brock Monument | U.S. Capitol, Pentagon, Biltmore Estate |
Interested in using Queenston Limestone?
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