Pretty but Problematic? Issues with Quartzite Counters

Quartzite is a natural stone that begins as sandstone before undergoing a metamorphic transformation under heat and pressure. The result is a very hard, visually stunning material composed almost entirely of interlocking quartz crystals. The sparkly, marble-like patterns and neutral tones of quartzite have made it a coveted choice for kitchen and bathroom countertops.

However, despite its beauty and durability, quartzite is not without some challenges that homeowners should understand before installation.

The Appeal of Quartzite Countertops

There are several reasons quartzite countertops have surged in popularity:

• Attractive aesthetic - With shimmering crystals and unique veining reminiscent of marble, quartzite delivers a one-of-a-kind upscale look.
• Extreme hardness - Quartzite registers at around 7 on the Mohs scale meaning it resists scratches, chips, and cracks better than granite.
• Stain resistance - Non-porous quartzite repels liquids, keeping stains at bay. But sealing is still required.
• Heat tolerance - As an exceptional insulator, quartzite withstands hot cookware better than many stones.

With strength nearly on par with diamonds plus eye-catching glitz and glamour, it's no wonder quartzite has become a top contender for contemporary kitchen designs.

Common Problems with Quartzite Counters

However, quartzite countertops do come with some important cautions that homeowners should know upfront:

Surface Cracks and Fissures

While resistant to outright cracking from impact, subtle cracks or fissures can develop in a quartzite countertop surface over time. This happens as internal stresses from the stone's formation history are eventually released. Fissures typically form around the edges, along seams, near sinks/faucets or in high-traffic areas.

Staining

Quartzite is considered largely non-porous, so liquid spills normally bead up rather than soak in. However, staining is still possible under certain conditions:

• Without a sealer, oils can penetrate and leave discoloration.
• Some liquids like wine, coffee and fruit juices contain pigments that may stain.
• Given enough time, even sealed surfaces can absorb stains.

No sealer lasts forever, so quartzite requires more vigilance against stains than granite.

Etching

While resistant to acids, quartzite's polish can become etched over time from repeated exposure to acidic substances like citrus, vinegar and chlorine. Etching damage is largely superficial but leaves the signature sheen of quartzite dull and worn.

Spalling Along Edges

Micro-fissures along a quartzite countertop's cut edges can slowly expand from everyday use. This causes layers to separate and flake off, known as spalling. Proper fabrication and polishing decreases the risks as does rounding sharp corners.

What Causes Quartzite Countertop Problems?

Understanding what makes quartzite vulnerable to certain defects helps homeowners decide if it's the right material for their kitchen.

Inherent Material Properties

The immense heat and pressure that created quartzite produced internal stresses still within the stone. Given the right conditions, these can cause cracking or separation along weak points. Sensitivity to acids is also innate to quartzite's chemical makeup.

Moisture Sensitivity

While resistant to liquids, moisture penetration activates quartzite's internal stresses. Repeated exposures slowly propagate cracks or opacity. Good sealing and immediate spill clean-up reduces risks.

Installation Factors

How quartzite slabs are cut, polished, sealed and mounted impacts durability. For example, rounded edges resist spalling better. Expert stone workers know best practices to minimize flaws.

Care and Maintenance

Quartzite's sparkling polish and stain resistance require maintenance. Letting seals lapse, using improper cleaners and neglecting prompt spill removal all heighten the chance of etched or stained spots.

Preventing Quartzite Countertop Problems

While quartzite countertops bring risks, steps can be taken to protect their beauty and function:

Careful Sourcing

All quartzite differs, so research options thoroughly. Review supplier information listing properties like acid sensitivity, scratch resistance and absorbency ratings. Also ask about complaints of staining or cracking.

Adequate Sealing

Ensure fabricators apply quality sealants to the entire slab, especially cut outs for sinks. Reseal as needed over time as seals deteriorate. Third-party protectants also guard against etching or wearing of factory seals.

Daily Maintenance

Never let spills sit. Immediately wipe counters dry then clean with a pH-neutral cleaner. Avoid acidic cleansers. Blot spilled liquids rather than wiping to prevent spreading.

Fixing Existing Quartzite Countertop Problems

While quartzite's flaws cannot be fully reversed, several remedies can significantly improve their appearance:

Crack and Etch Repair

Etch marks and minor cracks can often be smoothed over by re-polishing the surface. More severe cracks may need special fillers. This requires refinishing the entire surface to blend repairs.

Re-Sealing

Countertops with worn seals allow stains to penetrate the stone over time. Stripping the finish and re-applying sealant blocks absorption plus enhances luster.

Refinishing

To remove difficult stains not eliminated through polishing, a quartzite countertop can be refinished. This involves honing down the surface to expose a fresh layer which gets re-sealed and re-polished.

Resurfacing

For severely damaged quartzite with extensive cracking or large broken sections, resurfacing provides a fix. The countertop gets built back up with a concrete mixture then re-polished.

Replacement

In cases of irreparable damage or pervasive flaws, replacing the quartzite counters may be needed. This allows a completely fresh start with hopefully better informed material selection.

Alternatives to Quartzite Countertops

Homeowners hesitant about quartzite's potential issues may want to consider more worry-free options:

Granite

More affordable than quartzite, granite better resists staining from spills given its tighter surface pores. But it scratches easier and lacks quartzite's glittery aesthetic.

Engineered Quartz

Quartz composites like Caesarstone combine ground quartz crystals with polymers and pigments for a non-porous, scratch-resistant surface without quartzite's cracks or sensitivity.

Concrete

Poured and stained for one-of-a-kind looks, concrete makes an extremely durable, heat-safe countertop immune to acids and liquids. But the industrial vibe isn't for everyone.

Soapstone

Soapstone develops a unique patina over time, hides scratches easily and stands up well to heat and spills. But regular sealing is a must to prevent deeper staining.