Learn about Granite Countertops.

By the Troy Granite Expert Team Originally published: 2015 | Last updated: May 2026

Granite is a coarse-grained crystalline igneous rock composed primarily of quartz and feldspar. It forms over millions of years as magma cools slowly under extreme pressure deep within the earth’s crust. That geological process is precisely what gives granite its legendary hardness, heat resistance, and one-of-a-kind visual character.

For Delaware, Pennsylvania, and New Jersey homeowners, the practical payoff is significant: a granite countertop installed correctly and sealed annually is among the longest-lasting surfaces available at any price point. At Troy Granite, we source directly from global quarries — eliminating the middleman — so our clients in Wilmington, Philadelphia, Cherry Hill, and Harrisburg receive premium stone at genuinely competitive pricing.

Where Does Granite Come From?

Granite is quarried on every inhabited continent. Major producing countries include Brazil, India, China, Italy, Portugal, Spain, Norway, South Africa, the United States, and Zimbabwe, among many others. Each origin region produces stone with distinct mineral compositions, color palettes, and structural characteristics.

Troy Granite purchases slabs directly from quarries across multiple countries, then hand-selects material based on structural integrity and visual consistency. Our showroom in [location] carries over 2,000 granite and marble slabs — one of the largest in-person selections available to homeowners in Delaware, Pennsylvania, Maryland, and New Jersey.

Granite vs. Marble: Understanding the Core Difference

Homeowners frequently compare these two materials. The distinction matters practically, not just aesthetically.

Granite is a siliceous stone — its mineral composition makes it highly resistant to acid etching and daily chemical exposure. Marble is a metamorphic stone; it is softer, more porous, and chemically reactive. Lemon juice, vinegar, wine, and many common cleaning products will etch an unsealed marble surface, leaving dull rings or spots. Granite, under normal household conditions, will not.

In terms of maintenance, granite demands far less vigilance. A basic sealing routine — once per year, under ten minutes — is sufficient for most granite varieties. Marble requires more frequent sealing and greater care around acidic substances.

Visually, marble typically features softer veining patterns against lighter backgrounds. Granite offers more varied visual textures, from fine-grained uniformity to dramatic crystalline movement. Both materials are available for in-person comparison at our showroom. For the Delaware and New Jersey markets specifically, granite remains the dominant choice for kitchen applications; marble tends toward bathrooms and decorative applications where heavy daily use is less of a factor.

Granite Performance: Durability, Strength & Heat Resistance

Hardness and scratch resistance: Granite ranks between 6 and 7 on the Mohs hardness scale. Only materials harder than granite — diamonds, other granite pieces, and certain abrasive kitchen scrub pads — will leave surface scratches under normal conditions.

Heat resistance: Granite withstands temperatures up to approximately 1,200°F (650°C). Hot cookware set directly on the surface will not char, scorch, or discolor the stone. That said, thermal shock from rapid, repeated temperature changes can theoretically stress the material over time; trivets remain a sensible practice for daily use.

Break and chip risk: Granite will not break under normal household use. Edge areas near sinks and countertop perimeters are the most vulnerable points for chipping — typically resulting in small, nearly invisible irregularities rather than structural damage. Minor chips are repairable with color-matched epoxy. If a larger fragment separates, preserve it: our installation team can use the original material for a seamless repair.

Etching: Unlike marble, granite does not etch from acidic household substances. If a sealed granite surface shows a dull spot, the sealer — not the stone — has reacted to the acid. The fix is localized resealing.

Granite Countertop Maintenance: Sealing and Cleaning

Do I Need to Seal My Granite Countertops?

This is the question we receive most often from new customers in Delaware, Pennsylvania, and New Jersey. The short answer: it depends on the stone, but annual sealing is the safest baseline for most residential applications.

A practical rule of thumb: lighter granite colors are more porous and absorb liquids more readily, so they benefit most from regular sealing. Darker granites are typically denser and may require sealing less frequently.

The sealing process itself is straightforward — most applications take under ten minutes and require no professional equipment. Troy Granite now offers a 15-year sealer warranty on qualifying installations. Existing customers in Delaware, Pittsburgh, and Harrisburg can call us directly for details.

How to Clean Granite Countertops

Mild dish soap and warm water handle the vast majority of cleaning tasks. One caution: soap residue builds up over time if surfaces are not rinsed thoroughly after washing. For daily maintenance, a damp microfiber cloth followed by a dry pass is sufficient and streak-free. Avoid ammonia-based products and bleach on sealed surfaces — they can degrade the sealer prematurely.

Granite Colors, Thickness & Weight: What to Expect

Colors Available

Granite occurs naturally in hundreds of color combinations. The primary color groups are: white, gray and black, brown, red and pink, green, blue, yellow, and violet. Among these, blue granites and exotic rare-origin stones tend to command premium pricing due to limited global supply.

Troy Granite’s showroom carries one of the most extensive live slab inventories in the Delaware Valley region. We encourage customers to view stone in person before committing — photographs, even high-resolution ones, do not fully capture the mineral depth and movement of natural granite.

Thickness Standards

The industry-standard thickness for residential granite countertops is 3cm (approximately 1¼ inches). This is the specification Troy Granite uses on all countertop projects. A thinner 2cm (¾-inch) option exists but typically requires underlayment for structural support and is less common for primary kitchen surfaces.

Weight

Granite is heavy material. At standard 3cm thickness, granite weighs approximately 18–20 pounds per square foot. Darker stones trend toward the higher end of this range. Cabinet structures should be assessed for load capacity before installation. Troy Granite’s installation specialists evaluate cabinet strength as part of every project — we will flag any reinforcement needs before work begins.

What Does Granite Countertop Installation Look Like?

Timeline

Troy Granite completes 99% of installations within a single day. Our standard turnaround from measurement to installed countertop is ten days. Pre-installation preparation — cutting, edge polishing, and material transport — typically requires one to four weeks depending on project scope and stone availability.

Seams

Granite slabs are large, but most kitchens spanning more than a standard footprint will require at least one seam — a precisely cut joint where two slabs meet. Seams are also necessary around curves, arches, and corners. Our fabrication team cuts and polishes seams to minimize their visual presence. On darker or heavily patterned stone, seams become nearly invisible to the casual eye.

Cabinet Support

Most standard residential cabinets support granite without modification. Older or lighter-duty cabinet structures occasionally need reinforcement. Troy Granite’s installation team assesses your cabinets as part of the pre-installation site visit and will advise on any required work before the installation date.

Granite Countertop Cost: What Factors Determine Price?

Pricing for granite countertops varies based on material selection, project complexity, and regional market conditions. Key cost variables include:

Stone selection: Exotic and rare-origin granites cost more than readily available domestic or common-import varieties. Blue granites and certain Brazilian stones are consistently among the highest-priced options.

Project complexity: Sink cutouts, outlet penetrations, curved edges, arched sections, and specialty edge profiles each add to fabrication time and cost.

Removal of existing surfaces: Tear-out of old countertops is an additional service.

Troy Granite Regional Specials:

For homeowners in Delaware, Maryland, and New Jersey: ask about our $1,499 countertop special.

For homeowners in Pittsburgh and Central Pennsylvania: dedicated regional specials are available — contact us for current pricing.

Troy Granite’s direct-from-quarry sourcing model eliminates the typical wholesale and distribution markup, which allows us to offer genuinely competitive pricing with no compromise on material quality.

Common Uses for Granite Beyond Countertops

Granite’s durability and aesthetic range make it suitable for applications well beyond the kitchen: bathroom vanities, fireplace surrounds, bar tops, flooring, shower surrounds, outdoor kitchen surfaces, garden benches, fountain bases, cabinet hardware, wall cladding, and commercial interior applications. If structural durability and natural stone aesthetics are the goal, granite is a viable candidate.

Frequently Asked Questions — Granite Countertops (Delaware, PA & NJ)

Will my granite countertop break? Under normal everyday use, no. Granite is an exceptionally hard, durable material. Severe physical abuse — dropping heavy objects directly onto an edge, for example — can cause damage, but routine kitchen use poses no structural risk.

Will granite scratch? Not under normal household conditions. Only materials harder than granite on the Mohs scale — diamonds, other granite surfaces, and certain abrasive pads — can scratch it.

Will granite etch? Granite itself is acid-resistant and does not etch under typical kitchen use. If your sealed granite shows a dull spot after acid exposure, the sealer has reacted — not the stone. Localized resealing resolves the issue.

Can I cut directly on granite? Technically yes — granite is hard enough to survive it. Practically, we advise against it. The stone will dull your knives rapidly, and fine metal particles from the blade edge can become embedded in the surface. This is particularly noticeable on darker granite colors.

Can I set hot pots directly on granite? Yes. Granite withstands temperatures up to approximately 1,200°F. A hot pan from the stove or oven will not damage the surface. Trivets are not structurally necessary, though they remain a sensible habit.

How much does granite weigh? At the standard residential 3cm thickness, granite weighs approximately 18–20 pounds per square foot. Most residential cabinets support this load; Troy Granite’s team assesses cabinet strength during every pre-installation visit.

How long does installation take? Troy Granite completes the overwhelming majority of installations within a single day. Our standard turnaround from final measurement to installed countertop is ten business days.

Do you offer a sealer warranty? Yes. Troy Granite now offers a 15-year sealer warranty on qualifying granite countertop installations. Call us for full terms and eligibility — this offer applies to both new and existing customers in Delaware, Pittsburgh, and Harrisburg.

Serving Delaware, Pennsylvania, Maryland & New Jersey

Troy Granite works directly with homeowners and contractors across the greater Delaware Valley and surrounding region. Our showroom carries over 2,000 live granite and marble slabs for in-person selection. Every project is measured, fabricated, and installed by our own specialists — no subcontractors, no middlemen.

For pricing, scheduling, or to arrange a showroom visit, contact us at troygranite.com.