unfading green slate


stone image | specifications | finishes | applications | projects
Unfading Green Slate, quarried in Vermont from our green slate quarry that has been in operation for over 150 years, is an excellent choice for interior and exterior applications. Because of its superior properties and performance, depth of 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. Unfading Green Slate is available in natural cleft, honed, cascade and textured finishes.

stone type



Pale gray green to medium forest green. Natural veining and markings occur.

weathering characteristic

“Unfading”, meaning it will hold its basic color even after many years of exterior use.


ASTM Grade A, relatively even cleft, 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


None 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 fine diamonds.

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

Textured - a relatively flat and uniform cleft finish with more texture than Cascade.

Line Textured - small, directional, intermittent grooves produce a fabric quality.

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