Quartzite
Riviera (Brazilian)
Brazil
Quartzite
Madreperola
South Africa
ASTM C616Food-Contact EligibleEtch ResistantScratch ResistantHeat ResistantFrost ResistantExterior-GradeVerified Quartzite
Madreperola
Photo coming soon
HardnessVery Hard(7–8 Mohs)
SoftHard
Acid SensitivityAcid Safe
SafeHigh Risk
Verify Before You Buy
Slab Yard Diagnostic Protocol
Quartzite is widely mislabeled in the trade — slabs sold as quartzite are sometimes dolomitic marble (e.g., Super White) or hybrid marble/quartzite layers (e.g., Fantasy Brown). Before you commit, run two quick tests from your Stone ID Kit to confirm the slab is genuine quartzite.
From your Stone ID Kit
Glass tileHCl dropper bottle (5–10%)Knife or steel scribeMagnifier
The full step-by-step protocol — including expected results and red flags — is included in your downloadable Buyer's Guide.
Stone TypeQuartzite
Geological NameQuartzite
OriginSouth Africa
ASTM SpecificationASTM C616
ClassificationDense Crystalline / Siliceous
Available FinishesPolished, Honed (Matte), Leathered, Brushed
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ℹ️
Resin Fill Present
Like most quartzites, Madreperola may contain polyester resin fill to stabilize the stone. In areas with significant direct sunlight, the resin can gradually yellow over time. Ask your supplier about the type of resin used — UV-stable epoxy resin is less prone to yellowing than standard polyester resin.
From the same quarry family
More stones from the Taj Mahal / Perla family
🔬
MB Stone I.D. Kit — Test Your Stone
Not sure what stone you have? This kit includes the tools professionals use to identify stone type, test acid sensitivity, check absorption, and determine the right care products.
Shop Stone I.D. Kit — $139.97HardnessVery Hard(7–8 Mohs)
SoftHard
Acid SensitivityAcid Safe
SafeHigh Risk
LOW — siliceous; does NOT etch
🔥Heat Tolerance
>480°F
💧Sealer
Yes (impregnator)
Technical Details
ASTM SpecificationASTM C616
Mohs Hardness7–8
Absorption0.05–0.40%
Density (pcf)150–170
Compressive Strength (psi)10,000–30,000+
Flexural Strength (psi)N/A
Abrasion Resistance (Ha)8–25+
Thermal Tolerance>480°F
ClassificationDense Crystalline / Siliceous
Geological NameQuartzite
OriginSouth Africa
Where can you use Madreperola?
Tap an application to see the full recommendation.
🏠
Interior
🌿
Exterior
Recommended Conditional Not Recommended
Care Instructions
Maintenance recommendations for Madreperola
🧹 Daily Cleaning
- Wipe surfaces with a soft, damp cloth or microfiber towel
- Use a pH-neutral stone cleaner — never use acidic or abrasive products
💧 Sealing Schedule
- Sealer type: Yes (impregnator)
- Seal every 1–2 years for normal residential use
- Test with water drops — if absorption occurs within 10 minutes, it's time to reseal
- Always clean the surface thoroughly before applying sealer
- Allow sealer to cure fully before using the surface (typically 24 hours)
⚠️ Warning Signs — Time to Call a Pro
- Dull spots or rings where liquids have sat on the surface
- Visible cracks, chips, or separating seams
- Discoloration or staining that won't clean away
- Surface feels rough or gritty in areas that were previously smooth
- Grout deterioration around the stone edges
🛒 Recommended Products
🧴
pH-Neutral Stone Cleaner
For daily cleaning. Avoid acidic or alkaline cleaners.
🛡️
Impregnating Sealer
Penetrates the stone to protect from within. Apply annually.
Need professional help?
Get a free consultation from Sureshine’s stone care experts.
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