Jacobsville Sandstone

Jacobsville Sandstone, quarried from northern Upper Michigan, is distinguished by its warm red to reddish-brown base color with mottled variations including pink, brown, and lighter cream or white streaks. These variations are due to iron oxide staining and bleaching effects, which contribute to its distinctive rustic and historic character. The stone is composed primarily of sand-sized quartz and feldspar grains cemented by calcite or silica, providing a naturally variegated and layered appearance.

Physical and Mechanical Properties

• Water Absorption: Typically between 2-6% due to its moderately porous nature.
• Density: Approximately 2.35 - 2.45 g/cm³, reflecting its compact matrix.
• Flexural Strength: Generally ranges from 5 to 10 MPa, which indicates moderate resistance to bending.
• Compressive Strength: Approximately 70 - 100 MPa, providing robustness and durability.
• Hardness: Typically around 6 on the Mohs scale, highlighting its moderate resistance to scratching.
• Porosity: Ranges from 5% to 10%, contributing to its moderate absorbency.
• Slip Resistance: Varies with finish, but generally offers good slip resistance when rough-finished or textured.

Chemical and Mineral Composition (% by weight)

• Quartz: 70-80%, providing the structural framework.
• Feldspar: 10-15%, contributing to its durability.
• Iron Oxides: 5-8%, responsible for the rich red and brown hues.
• Clay Minerals: 2-5%, which can affect the porosity and color variation.
• Calcite or Silica Cement: Typically 5-10%, binding the grains together.

Usage

Jacobsville Sandstone is versatile and suitable for various architectural and sculptural applications:

• Exterior Cladding: Its durability and aesthetic appeal make it ideal for building facades.
• Interior Flooring: Offers a rustic, earthy ambiance.
• Paving: Its strength and slip resistance are suitable for outdoor terraces and patios.
• Architectural Details: Commonly used in trims, quoins, and columns due to its workability.
• Monuments and Memorials: Valued for its historic character.

Maintenance

• Regular Cleaning: Use mild detergents or stone-specific cleaners to maintain appearance.
• Sealing: Application of a penetrating sealant can help reduce staining and water absorption.
• Periodic Inspections: Check for signs of wear or damage, especially in high-traffic areas.

Cutting Sizes (cm)

• Standard Slabs: Typically available in various thicknesses like 2, 3, or 5 cm.
• Custom Dimensions: Available upon request depending on project specifications and quarry capabilities.

Surface Finish Options

• Honed: Offers a smooth, matte finish suitable for interiors.
• Bush-Hammered: Provides a rugged, textured surface with enhanced slip resistance.
• Sandblasted: A lightly textured surface with a muted aesthetic.
• Polished: Achieves a glossy sheen, though less common due to its moderate hardness.
• Split-Face: Retains a natural, rough appearance enhancing its rustic charm.

Jacobsville Sandstone combines aesthetic appeal with practical durability, making it a favored choice for both historical restoration and contemporary architecture. Maintenance and finish options allow for versatility in various environmental conditions and design requirements.