Green onyx is the stone that stops people in their tracks. Semi-translucent, deeply coloured, and filled with golden veins, it's one of the most distinctive natural stones in the world — and the single most requested colour in Artreestry's chess set collection. Here's everything you need to know about it.

What Is Green Onyx?

Green onyx is a variety of onyx — a microcrystalline form of quartz — that forms in deposits throughout the world, with the finest quality material coming from Pakistan, Iran, and parts of Mexico and Brazil. Its green colour comes from the presence of chromium and iron during crystal formation. The characteristic golden veins are caused by iron oxide deposits along ancient mineral pathways.

Unlike standard marble (which is metamorphic limestone), onyx is a silica-based stone with a completely different geological origin. This difference in composition gives it properties that marble lacks — particularly its partial translucency. Hold a piece of green onyx up to light and it will glow from within, the way sea glass does. No other common chess set material replicates this effect.

Green Onyx vs Black Onyx vs White Onyx

All three are varieties of the same mineral family but have distinctly different characters:

• Green Onyx: Semi-translucent, deep forest green with golden veins. Warm, rich, jewel-like. The rarest and most visually complex of the three.
• Black Onyx: Deep, near-opaque black with very fine white veining or none at all. Dense, dramatic, and mirror-like when polished. Creates maximum visual contrast as a chess set component.
• White Onyx: Semi-translucent white to cream with very fine veining. Softer and more delicate-looking than standard white marble. Creates a luminous, glowing quality in finished pieces.

Despite sharing the "onyx" name, each has a completely different visual personality. Green onyx reads as bold and dramatic; black onyx as deep and commanding; white onyx as ethereal and refined.

Why Green Onyx Is Prized for Chess Sets

Several factors make green onyx particularly well-suited to chess pieces and boards:

Translucency: When chess pieces are carved from green onyx, the light passing through the stone from any angle creates subtle variations in colour depth — darker at the base, lighter at the carved edges. This dimensional quality makes each piece visually alive rather than flat.

Uniqueness: Green onyx has highly varied veining between pieces from the same batch. No two green onyx chess pieces will look identical — which means a green onyx chess set can never look mass-produced, regardless of price.

Colour contrast: The deep green of onyx creates outstanding contrast against white marble on the opposing side. The White & Green Onyx chess set is Artreestry's most popular combination — the visual interplay between pure white and deep translucent green is extraordinary.

Care for Green Onyx

Green onyx requires the same basic care as other marble and stone pieces: wipe with a soft damp cloth, avoid acidic cleaners (vinegar, citrus-based products), and avoid prolonged direct sunlight, which can very gradually shift the tone of the stone over years. Green onyx is slightly softer than white marble, so handle pieces with care to avoid chipping edges if dropped.

Where Artreestry's Green Onyx Comes From

Artreestry's green onyx is sourced from the mining regions of Pakistan, which produces some of the world's finest quality green onyx. The stone is selected for colour consistency, translucency, and absence of structural defects before being allocated to our craftsmen for carving. Each batch is slightly different — the exact tone of green, the pattern of golden veining, and the depth of translucency will vary between production runs. This variability is the stone's nature, and it's what makes each piece genuinely unique.