Material source record

Unfading Green Slate

Source checked 23 Sept 2026

Back to the stone

Photo source: Vermont Structural Slate

Unfading Green Slate natural cleft finish. — Unfading Green Slate — natural cleft finish. Photo source: Vermont Structural Slate.Vermont Structural Slate

Unfading Green Slate honed finish. — Unfading Green Slate — honed finish. Photo source: Vermont Structural Slate.Vermont Structural Slate

Unfading Green Slate cascade finish. — Unfading Green Slate — cascade finish. Photo source: Vermont Structural Slate.Vermont Structural Slate

Unfading Green Slate textured finish. — Unfading Green Slate — textured finish. Photo source: Vermont Structural Slate.Vermont Structural Slate

Atrium floor surrounding displayed sculpture at Museum of Modern Art (MoMA). — Atrium floor surrounding displayed sculpture at Museum of Modern Art (MoMA), a project using Unfading Green Slate. Architecture: Taniguchi and Associates, Kohn Pedersen Fox Associates. Photo source: Vermont Structural Slate.Vermont Structural Slate

Sunlit interior floor beside the stair at Museum of Modern Art (MoMA). — Sunlit interior floor beside the stair at Museum of Modern Art (MoMA), a project using Unfading Green Slate. Architecture: Taniguchi and Associates, Kohn Pedersen Fox Associates. Photo source: Vermont Structural Slate.Vermont Structural Slate

Interior floor beside full-height glazing at Museum of Modern Art (MoMA). — Interior floor beside full-height glazing at Museum of Modern Art (MoMA), a project using Unfading Green Slate. Architecture: Taniguchi and Associates, Kohn Pedersen Fox Associates. Photo source: Vermont Structural Slate.Vermont Structural Slate

Interior circulation and flooring beneath an exhibition at Museum of Modern Art (MoMA). — Interior circulation and flooring beneath an exhibition at Museum of Modern Art (MoMA), a project using Unfading Green Slate. Architecture: Taniguchi and Associates, Kohn Pedersen Fox Associates. Photo source: Vermont Structural Slate.Vermont Structural Slate

Gallery floor surrounding a sculpture at Museum of Modern Art (MoMA). — Gallery floor surrounding a sculpture at Museum of Modern Art (MoMA), a project using Unfading Green Slate. Architecture: Taniguchi and Associates, Kohn Pedersen Fox Associates. Photo source: Vermont Structural Slate.Vermont Structural Slate

Slate floor seen from above at Museum of Modern Art (MoMA). — Slate floor seen from above at Museum of Modern Art (MoMA), a project using Unfading Green Slate. Architecture: Taniguchi and Associates, Kohn Pedersen Fox Associates. Photo source: Vermont Structural Slate.Vermont Structural Slate

Interior circulation beside the stair at Museum of Modern Art (MoMA). — Interior circulation beside the stair at Museum of Modern Art (MoMA), a project using Unfading Green Slate. Architecture: Taniguchi and Associates, Kohn Pedersen Fox Associates. Photo source: Vermont Structural Slate.Vermont Structural Slate

Atrium floor and gallery overlook at Museum of Modern Art (MoMA). — Atrium floor and gallery overlook at Museum of Modern Art (MoMA), a project using Unfading Green Slate. Architecture: Taniguchi and Associates, Kohn Pedersen Fox Associates. Photo source: Vermont Structural Slate.Vermont Structural Slate

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Material sources

Material catalogue

The Unfading Green entry explicitly states that the stone is quarried in Vermont. Its color specifications, listed finishes and applications substantiate the recorded formats and uses.

Museum of Modern Art (MoMA)

Producer documents approximately 4 ft × 2 ft honed Unfading Green Slate flooring throughout the first and second floors. This is a project example, not a stock-size or maximum-size claim. Architecture: Taniguchi and Associates, Kohn Pedersen Fox Associates.

Vermont slate ranging from pale gray-green to medium forest green.

Listed supplier: Vermont Structural Slate
Quarry / operation: Vermont Structural Slate (producer range; individual quarry unconfirmed)
Location: Vermont
Color families: Green, Gray
Supply route: Custom architectural stone; 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; Cascade; Textured
Source

Related producer groups

Vermont Structural Slate / James River Slate

Source-described uses

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

Honed Unfading Green Slate was used for flooring at MoMA. The approximately 4 ft × 2 ft dimensions are specific to that installation.

Application source

Origin evidence

Extraction country: USA — verified[1]
Extraction state: Vermont — verified[1]
Quarry / operator: Vermont Structural Slate (producer range; individual quarry unconfirmed)[1]

Sources (1)

Source 1 · extraction country, extraction state, quarry / operator

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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.