heathermoor slate


stone image | specifications | finishes | applications | projects
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.

stone type



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

weathering characteristic

“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).


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.


interior, exterior


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


stone image | specifications | finishes | applications | projects

Finishes Descriptions

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

Honed - an extremely smooth, eggshell finish. Achieved with the use of the fine diamonds.

Cascade - a fairly flat, uniform finish with subtle ripples and soft texture.

Roofing - generally natural cleft both faces with trimmed edges. slate roofing finish