Serpentine
Connemara Green
Ireland (Connemara, Galway)
Serpentine
Vert de Mer
France
ASTM C1526Frost ResistantSofter Surface
Vert de Mer
Photo coming soon
HardnessMedium(3–5 Mohs)
SoftHard
Acid SensitivityLow Risk
SafeHigh Risk
Verify Before You Buy
Slab Yard Diagnostic Protocol
Run a quick verification with your Stone ID Kit to confirm the slab matches its label. The two-test routine (scratch + acid) catches most identification errors in the trade.
From your Stone ID Kit
Glass tileHCl dropper bottle (5–10%)
The full step-by-step protocol — including expected results and red flags — is included in your downloadable Buyer's Guide.
Stone TypeSerpentine
Geological NameSerpentinite
OriginFrance
ASTM SpecificationASTM C1526
ClassificationDense Crystalline / Siliceous
Available FinishesPolished, Honed (Matte)
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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 — $139.97Alternatives to Vert de Mer
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