Gray and Copper Abstract Hand-Knotted Wool Rug, Aren Series

It looks like bronze left outdoors for thirty years: copper and brick orange scattered across a gray ground with dark anthracite shading between them. Gray and Copper Abstract Hand-Knotted Wool Rug, Aren Series — wool with viscose in it, hand-knotted in India, 168 × 246 cm (5'6" × 8'1").

Patina is something collectors pay for in metal, and it is unusual to see it aimed at deliberately in a rug, but that is what the drawing is doing. The copper collects in particular areas instead of spreading evenly, and the rest of the field stays a calm gray, which is why this never becomes a warm rug — it stays a gray one with heat in it. Beside pale wood furniture and plants in terracotta pots it is natural and settled; in a gray and white room the copper is the only temperature in the space.

Viscose is what makes the copper move: it sends light back along the length of the strand, so the same patch is bright from one side of the room and matt from the other. Wool holds the gray and takes the traffic. The weave is tight and the count is high, which is why the pile stands instead of flattening under a chair leg. Months of hand work per piece, by weavers in India. Do not wash it at home — a deep clean belongs to a professional, and day-to-day care is a vacuum and a wipe.

• Knotted by hand in India, months per piece, on a tight weave.
• Wool with viscose; the viscose is what makes the copper shift with the light.
• Copper and brick orange gathered on a gray ground, with anthracite shading between.
• 168 × 246 cm (5'6" × 8'1") — a mid-size sitting room or a study.
• A tight weave that keeps the pile upright under furniture.
• Aren is the brightest single grain in a desert — the name of the series.
• Made in small numbers; the same design is not always available.
• Vacuum and wipe; deep cleaning by a professional, never at home.

Old bronze is the reference and it holds up, right down to the way the copper looks colder in the morning than it did the night before.