Material source record

Heathermoor Slate

Source checked 23 Sept 2026

Back to the stone

Photo source: Vermont Structural Slate

Heathermoor Slate honed finish. — Heathermoor Slate — honed finish. Photo source: Vermont Structural Slate.Vermont Structural Slate

Textured slate wall cladding along the sidewalk at Memorial Sloan-Kettering Mortimer B. Zuckerman Research Building. — Textured slate wall cladding along the sidewalk at Memorial Sloan-Kettering Mortimer B. Zuckerman Research Building, a project using Heathermoor Slate. Architecture: SOM/ZGF. Photo source: Vermont Structural Slate.Vermont Structural Slate

Street elevation with slate wall cladding at Memorial Sloan-Kettering Mortimer B. Zuckerman Research Building. — Street elevation with slate wall cladding at Memorial Sloan-Kettering Mortimer B. Zuckerman Research Building, a project using Heathermoor Slate. Architecture: SOM/ZGF. Photo source: Vermont Structural Slate.Vermont Structural Slate

Close view of the layered slate wall at Memorial Sloan-Kettering Mortimer B. Zuckerman Research Building. — Close view of the layered slate wall at Memorial Sloan-Kettering Mortimer B. Zuckerman Research Building, a project using Heathermoor Slate. Architecture: SOM/ZGF. Photo source: Vermont Structural Slate.Vermont Structural Slate

Slate flooring in the café at Memorial Sloan-Kettering Mortimer B. Zuckerman Research Building. — Slate flooring in the café at Memorial Sloan-Kettering Mortimer B. Zuckerman Research Building, a project using Heathermoor Slate. Architecture: SOM/ZGF. Photo source: Vermont Structural Slate.Vermont Structural Slate

Slate wall beside the entrance at Memorial Sloan-Kettering Mortimer B. Zuckerman Research Building. — Slate wall beside the entrance at Memorial Sloan-Kettering Mortimer B. Zuckerman Research Building, a project using Heathermoor Slate. Architecture: SOM/ZGF. Photo source: Vermont Structural Slate.Vermont Structural Slate

Building elevation above the slate wall at Memorial Sloan-Kettering Mortimer B. Zuckerman Research Building. — Building elevation above the slate wall at Memorial Sloan-Kettering Mortimer B. Zuckerman Research Building, a project using Heathermoor Slate. Architecture: SOM/ZGF. Photo source: Vermont Structural Slate.Vermont Structural Slate

Slate wall with trees in the foreground at Memorial Sloan-Kettering Mortimer B. Zuckerman Research Building. — Slate wall with trees in the foreground at Memorial Sloan-Kettering Mortimer B. Zuckerman Research Building, a project using Heathermoor Slate. Architecture: SOM/ZGF. Photo source: Vermont Structural Slate.Vermont Structural Slate

Stairway beside the slate wall at Memorial Sloan-Kettering Mortimer B. Zuckerman Research Building. — Stairway beside the slate wall at Memorial Sloan-Kettering Mortimer B. Zuckerman Research Building, a project using Heathermoor Slate. Architecture: SOM/ZGF. Photo source: Vermont Structural Slate.Vermont Structural Slate

View producer photographs Open sample photograph

Compare the producer’s sample photographs and confirm the current range and finish.

Material sources

Heathermoor finishes and weathering

Natural cleft and honed finishes. Semi-weathering: some exterior pieces acquire brownish tones; the producer treats this as an aesthetic characteristic. Agree the selection range before ordering.

Memorial Sloan-Kettering Mortimer B. Zuckerman Research Building

Producer associates Heathermoor Slate with this SOM/ZGF project and lists interior flooring, wall cladding and sculpings. SOM/ZGF is the architect credit; no photographer is identified.

Medium gray Vermont slate with black veining or spots; white quartz veins can occur. Some exterior pieces develop brownish tones as part of the material’s semi-weathering character.

Listed supplier: Vermont Structural Slate
Location: Vermont
Color families: Gray, Black
Supply route: Custom architectural slate in natural cleft and honed finishes; flooring and paving; stair treads; wall cladding; countertops; roofing slate
Listing source: Producer documentation · source checked 23 Sept 2026
Photograph: Sourced photograph · checked 2026-09-28

Documented capabilities

Available finishes: Natural cleft; Honed
Source

Source-described uses

Flooring · Landscape & site stone · Cladding & exterior walls · Countertops · Roofing

Uses described by the producer. This is not a finding of suitability for a particular assembly or project.

Application source

Origin evidence

Extraction country: USA — verified[1]
Extraction state: Vermont — verified[1]

Quarry origin unconfirmed.

Sources (1)

Source 1 · extraction country, extraction state

Confirm before specifying

Ask the supplier about current availability, material range, fabrication and test data for your application. A listing or MSHA status does not establish supply readiness.

Open producer material page

Material name, origin and available formats follow the cited producer documentation. Color tags follow the named range and a visual review of its photograph. Producer association does not establish an exact MSHA permit match.