Soapstone

Pietra del Cardoso

Italy

Pietra del Cardoso

Photo coming soon

HardnessSoft(1–3 Mohs)

SoftHard

Acid SensitivityAcid Safe

SafeHigh Risk

Stone TypeSoapstone

Geological NameSoapstone (steatite)

OriginItaly

ASTM SpecificationC170/C880 (no ASTM spec)

ClassificationTalc-based / Non-calcareous

Available FinishesHoned (Matte), Leathered

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Natural Patina Development

Soapstone naturally darkens over time with use and exposure to oils. You can accelerate this with mineral oil for a uniform dark appearance, or let it develop naturally for a varied patina. This is a feature, not a defect.

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Naturally Non-Porous

Soapstone does not need sealing — it is naturally non-porous and resistant to staining. This makes it an excellent low-maintenance option for kitchens and laboratories.

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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