Namib White Dolomite

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HardnessMedium(3.5–4 Mohs)

SoftHard

Acid SensitivityModerate Risk

SafeHigh Risk

Verify Before You Buy

Slab Yard Diagnostic Protocol

Marble is a beautiful, premium stone — but it has well-known performance limits. The diagnostic kit confirms you're getting genuine marble (not mislabeled) and gives you a chance to see how the slab will react to the acids you'll encounter in real life.

From your Stone ID Kit

Glass tileHCl dropper bottle (5–10%)Magnifier

The full step-by-step protocol — including expected results and red flags — is included in your downloadable Buyer's Guide.

Stone TypeDolomite

Geological NameDolomite marble

OriginNamibia / Brazil

ASTM SpecificationASTM C503

ClassificationCalcareous (dolomitic)

Available FinishesPolished, Honed (Matte), Leathered, Brushed

AntiEtch® FinishesPolished, Honed (Matte) only

Get Namib White Dolomite’s care guide — free

We’ll email you the care do’s and don’ts for Namib White Dolomite, plus what to watch out for.

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ℹ️

Acid-Sensitive Stone

As a calcareous stone, Namib White Dolomite will etch (develop dull spots) when exposed to acidic substances like lemon juice, vinegar, wine, tomato sauce, and many household cleaners. MORE AntiEtch® protection can permanently prevent acid etching on polished and honed finishes.

🛡️

MORE® AntiEtch® Protection Available

Namib White Dolomite is a calcareous stone susceptible to acid etching. AntiEtch® provides permanent protection against lemon, vinegar, and other common acids.

Learn More

🔬

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 — $139.97

HardnessMedium(3.5–4 Mohs)

SoftHard

Acid SensitivityModerate Risk

SafeHigh Risk

MEDIUM — more resistant than calcite marble

🔥Heat Tolerance

~350°F

💧Sealer

Yes (impregnator)

Technical Details

ASTM SpecificationASTM C503

Mohs Hardness3.5–4

Absorption0.05–0.20%

Density (pcf)162–172

Compressive Strength (psi)10,000–20,000

Flexural Strength (psi)~1,000

Abrasion Resistance (Ha)~10

Thermal Tolerance~350°F

ClassificationCalcareous (dolomitic)

Geological NameDolomite marble

OriginNamibia / Brazil

Where can you use Namib White Dolomite?

Tap an application to see the full recommendation.

🏠

Interior

🌿

Exterior

Recommended Conditional Not Recommended

Care Instructions

Maintenance recommendations for Namib White Dolomite

🧹 Daily Cleaning

Wipe surfaces with a soft, damp cloth or microfiber towel
Use a pH-neutral stone cleaner — never use acidic or abrasive products
Avoid lemon, vinegar, wine, or any acidic substance on the surface
Blot spills immediately — do not wipe, as this spreads the acid

💧 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
White marks or dulled areas from acid etching (lemon, vinegar, wine)
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.

⭐

MORE® AntiEtch® Treatment

Permanent acid-etch protection by Sureshine professionals.

🛡️ MORE® AntiEtch® Protection

Eliminate acid etching permanently. One application protects Namib White Dolomite from lemon, vinegar, wine, and all common acids. Applied by certified Sureshine professionals.

Get a free estimate