Slate

Black Slate

China / India

Black Slate

Photo coming soon

HardnessMedium(2.5–4 Mohs)

SoftHard

Acid SensitivityModerate Risk

SafeHigh Risk

Stone TypeSlate

Geological NameSlate

OriginChina / India

ASTM SpecificationASTM C629

ClassificationSiliceous (most)

Available FinishesHoned (Matte), Brushed

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Natural Cleft Surface

Slate can be left with its natural cleft (split) surface for a textured, organic look, or gauged/calibrated for a flatter profile. Natural cleft provides excellent slip resistance for exterior use.

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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