Green onyx is a banded-stone label, so the slab decides its furniture use. A 1,200 × 600 × 20 mm (47.2 × 23.6 × 0.79 in) top at 2.4–2.7 t/m³ (150–169 lb/ft³) weighs 34.6–38.9 kg (76.2–85.7 lb). Use for low-traffic tables when fissures and backing are approved.
What does “green onyx” cover, and which values are safe to use?
Public references define onyx as a banded variety of chalcedony, but commerce also applies the name to banded carbonate materials. This page therefore ties technical decisions to a named slab, not a family-wide hardness claim.
| Parameter | Typical specification | Confirm before cutting | Reference |
|---|---|---|---|
| Name | Green onyx; Green Onyx Medium in the catalog | Exact commercial name and slab number | Amazstone catalog, 2026 |
| Classification | Natural onyx according to the source catalog | Mineral identity or trade classification | Approved slab |
| Appearance | Green field with banding or variation | Full face, cut direction and book-match | Slab approval |
| Bulk density | 2.4–2.7 t/m³ (150–169 lb/ft³) | Quoted slab density | Family reference |
| Reference weight | 1,200 × 600 × 20 mm (47.2 × 23.6 × 0.79 in): 34.6–38.9 kg (76.2–85.7 lb) | Thickness, base and reinforcement | Calculated |
| Hardness | No single value for all commercial onyx | Slab-specific test where wear matters | Onyx reference |
| Backing | None, mesh or composite as specified | Fissures, span, edge and translucency | Furniture drawing |
| Catalog price tier | 2–3 across the two listings | Grade, slab, finish and usable area | Amazstone catalog, 2026 |
Which Green Onyx options are available?
The catalog includes “Green onyx” at tier 3 and “Green Onyx Medium” at tier 2. These names and price tiers do not establish quarry, stock or mineral identity. Use the exact listing name when comparing quotations.
| Catalog name | Listed type | Price tier | What to confirm |
|---|---|---|---|
| Green onyx | Onyx | 3 | Slab mineral test, finish, backing and stock |
| Green Onyx Medium | Onyx | 2 | Distinction from the other listing and current supply |
How do you choose a green onyx face from photographs?
Choose from the complete face in diffuse daylight. Green onyx can shift between moss, olive, jade and blue-green, and bands may become more prominent when the slab is backlit. A thumbnail can hide fractures, cloudy areas and repairs that become obvious under raking light.
Ask for the exact slab, not a representative photograph, plus its dry face, back and edge. A listing image shows appearance only; it does not confirm stock or ownership.
Why does one green onyx slab look darker or more banded than another?
Variation comes from bands, inclusions, cut direction and resin. A face-cut can look striped, while a cross-cut may appear mottled. Backlighting can reveal cloudiness or a repair invisible in reflected light. Keep the slab number, finish and lighting method in the order, and approve paired faces together.
Where does green onyx work best as furniture?
Green onyx suits a low-traffic coffee table, side table or console top where pattern and possible translucency are the reason to use it. Dining tables and wet furniture need a closer check of fissures, reinforcement, cleaning and edge exposure. Thin backlit panels need a separate carrier and safe electrical detailing.
| Furniture | Fit | Condition |
|---|---|---|
| Coffee or side table | Good with slab approval | Protect edges and confirm backing needs |
| Console top | Good | Support the narrow span and inspect fissures |
| Dining table | Conditional | Use a robust carrier and planned care routine |
| Backlit panel | Specialist use | Control heat, moisture and panel support |
| Wet outdoor table | Avoid unless specified | Assess staining, freeze-thaw and water exposure |
Which colors stop a green onyx table from looking muddy?
Pair the stone with one neutral and one metal or wood note. Cream and pale oak keep yellow-green bands fresh; charcoal and dark walnut clarify deep green. Choose finish samples in the room because honing, polishing and backlighting alter the colour.
What drives the price of a green onyx table?
Price follows the chosen slab, matching, thickness and fabrication more closely than the material name. Thin translucent sections may need a carrier, edge lamination or lighting detail, while repairs and fractures can reduce usable area. A price tier alone cannot describe those differences.
Before comparing prices, ask for the supplier’s slab reference and a written treatment schedule covering the surface finish, nominal thickness, fissure treatment and any backing or carrier. Check those entries against the actual translucent face and lighting arrangement, then approve a sample or image for the exact lot. Send the intended table size and a slab photograph through Contact for a specification-led quotation.
Which green onyx problems appear after the table is installed?
Etching, stains, chipped edges and visible repairs are the main risks, while a thin backlit panel can also reveal moisture or uneven backing. Wipe spills promptly with a pH-neutral stone cleaner, use coasters and avoid acidic household cleaners. Test any sealer on an offcut.
Inspect the back and lighting cavity during installation. A warm or uneven light source can make thin stone look blotchy, and trapped moisture can make a repair more conspicuous. Follow Natural Stone Institute care guidance for routine cleaning and use the onyx vs marble comparison before changing material.
When are blue onyx or white onyx easier to specify than green?
Choose by the slab rather than assuming one colour is stronger. Blue and white onyx offer different patterns but the same commercial-label uncertainty, so each needs its own face, backing and translucency approval. For a durability-led decision, compare quartzite as well.
| Alternative | Difference that matters | Read next |
|---|---|---|
| Blue Onyx | Blue-led bands and a different slab-specific repair risk | Blue Onyx guide |
| White Onyx | Pale translucent appearance that changes strongly when backlit | White Onyx guide |
| Verde Alpi | Green marble type with a different mineral and fabrication profile | Verde Alpi guide |
| Quartzite | Usually quartz-rich and harder, without assuming translucent banding | Quartzite family guide |
Which table collections can use a green onyx top?
Choose a table shape that frames the slab economically. A round coffee table centers the banding, a console shows a long run and an onyx dining table needs the strongest support plan.
What should a buyer confirm before choosing green onyx?
Confirm the slab face, mineral label, backing and lighting plan; the green colour alone is not a material specification.
What is green onyx good for?
Green onyx suits low-traffic coffee tables, side tables, console tops and feature surfaces where its banding is visible. Thin translucent panels may be backlit behind glass or mesh, but regular dining use and wet areas demand careful slab approval. Check fissures, backing, edge protection and cleaning before choosing it over a tougher quartzite.
Is green onyx a natural stone?
The catalog classifies its Green onyx documents as natural onyx, but “onyx” is a commercial label as well as a geological term. Public sources define onyx as banded chalcedony, while some commercial slabs sold under the name are carbonate stone. Ask for the actual slab document and mineral test rather than treating every green onyx alike.
Does a green onyx table need a backing?
A backing or reinforcement may be required when the slab is thin, fractured, translucent or used as a wide span. The decision should follow the slab inspection and furniture drawing, not every table automatically. Mesh, glass or a composite carrier changes edge appearance and load behavior, so approve the detail before fabrication.
What sources informed this Green Onyx guide?
The Amazstone Editorial Team combined the dated catalog listing with public references on onyx and stone care. We do not claim current stock, a measured hardness or a verified quarry.
Amazstone Editorial Team
Material and furniture research
Last updated 2026-10-28
Sources:
- Wikipedia: Onyx identifies onyx as a banded variety of chalcedony.
- Natural Stone Institute provides general natural-stone care guidance.
- Amazstone catalog, 2026, lists Green onyx and Green Onyx Medium as natural onyx at tiers 3 and 2.
- The 34.6–38.9 kg (76.2–85.7 lb) weight range is calculated from the stated family density band, not presented as a measured table.