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Heathermoor Slate

Quarried in Vermont, Heathermoor Slate is frequently used for interior and exterior applications. Because of its superior properties and performance, strata gray color and rich texture, architects repeatedly specify this natural Vermont slate for interior slate flooring, exterior paving stone, stair treads, fireplace surrounds, slate wall cladding including slate wall shingles and slate sculpings, countertops and roofing. Heathermoor Slate is available in natural cleft, honed and cascade finishes.


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    Natural Cleft Finish

    A textured, natural finish, both visually and to the touch. Achieved by splitting the stone along its cleave with a hammer and chisel.

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    Honed Finish

    An extremely smooth, eggshell finish. Achieved with the use of the fine diamonds.


Stone Type



Medium charcoal gray with varying amounts of black veining and spots. White quartz veins may occur.

Weathering Characteristics

“Semi-weathering”, meaning that some pieces change color when used outside and others do not. Those that do take on brownish tones. (Heathermoor’s weathering characteristic is an aesthetic consideration and does not adversely affect its performance or durability).


interior, exterior


ASTM Grade A, rough textured, exceptionally strong and hard, durable, dense, low absorption rate, resistant to freeze-thaw cycles. Slip-, stain-, and heat-resistant. No detrimental effects on the environment.


Depending on the application, an impregnating sealer may be required. Contact us for information regarding the use of sealers, impregnators, oiling, cleaning, etc.


Upon request

ASTM Results

Upon request

  • Coping and Chimney Caps
  • Counter Tops
  • Exterior Paving
  • Fireplace Surrounds
  • Furniture and Signs
  • Gravestones and Monuments
  • Interior Flooring
  • Landscaping
  • Slate Roofing
  • Stair Treads
  • Wall Cladding
  • Window Stools and Sills