Photo is for reference only. Color, veining, and shading vary between slabs. This stone is brought in per order, so tell us your full run and we will source slabs from the same block.

Multicolor Onyx

Quarry: Turkey
Surface Finish: Polished
Edges: Natural (Unpolished)
Thickness: 18 mm
Requires Sealing: Yes

Put a light behind the panel and the amber, green and rust bands separate into layers. Multicolor Onyx is the most variable stone we sell, and two slabs from one shipment can read as different palettes.

Quarry	Turkey
Surface Finish	Polished
Edges	Natural (Unpolished)
Thickness	18 mm
Requires Sealing	Yes

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Indent order: brought in for your project rather than held in the yard. Ask your branch about the current lead time.

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Why Choose Multicolor Onyx

Translucent When Backlit Amber, green and rust bands separate into layers of color when lit from behind.

Unique Appearance The most variable stone we sell. Two slabs from one shipment can carry entirely different palettes.

Provides an Upscale Look A single lit panel in a bar or reception is exactly what people remember about a space.

Best as a Feature Onyx is at its finest on a backlit bar front, feature wall or vanity, where its translucency becomes the centerpiece of the room.

What Is Multicolor Onyx?

Several colors in one slab, and light behind all of them.

Multicolor Onyx is a translucent stone quarried in Turkey, carrying amber, green, cream and rust bands within a single slab. Where Honey Onyx commits to warm and Mint Onyx to cool, this one runs both through the same piece.

Light passes through it, which is the property that makes onyx worth its price. Backlit, the bands separate into distinct layers of color and the panel reads as depth rather than surface.

What Is Onyx, Geologically?

Architectural onyx is banded calcite, laid down layer by layer where mineral-rich water emerged in caves and springs. Each band records a different period of deposition, and trace minerals give each its color.

It has nothing to do with the black onyx used in jewelry, which is chalcedony. The names collide and the materials do not.

Why Do the Colors Vary So Much?

Because the mineral content of the water changed over the time the stone formed. Iron gives the rusts and ambers, other traces give the greens, and the clean bands are periods when the water ran relatively pure.

This makes Multicolor the most variable stone we sell. Two slabs from the same shipment can carry entirely different palettes, and no photograph will prepare you for what arrives.

Should You Book-Match It?

Book-matching pairs two sequential slabs opened like a book, so the banding mirrors across the seam. On a stone with this much color movement the effect is striking, and it turns a busy panel into a deliberate composition.

Ask at the point of order rather than at fabrication, because the slabs must be cut in sequence and kept together.

How Much Does Multicolor Onyx Cost?

Prices are subject to change without prior notice.

Item	Starting Rates
Multicolor Onyx slab	On request
Fabrication	₱500 per lm
Installation	₱500 per lm
Sink or hob cut-outs	₱500 per set

Cut-out charges apply only when installation is included. Delivery is priced based on distance from your nearest Stone Depot branch.

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How Do You Backlight Multicolor Onyx?

Neutral light, because the slab cannot pick a side.

Backlighting is the reason to buy onyx. Unlit, this is a fragile and expensive stone that reads as a busy marble, and lit, it does something no other material can.

The complication here is temperature. A slab carrying both warm ambers and cool greens cannot be flattered by a light that favours one.

Use neutral white, around 4000K. Warm light drowns the greens and cool light deadens the ambers.
Diffused LED panels give an even glow, where point lights read as hot spots through the stone.
Leave an air gap so heat does not build against the back face of the slab.
Dimmable fittings are worth specifying, because the color balance shifts with intensity.
Thinner slabs transmit more light, so ask about reducing thickness for a lit panel.

Test with the actual slab before you commit the fixing. Color distribution varies so much between pieces that the same rig behind two Multicolor slabs produces genuinely different results.

Build the frame, the light and the access together. Retrofitting any one of the three behind an installed panel is far harder than planning all three.

Where Should You Use Multicolor Onyx?

One feature, well lit, and nothing that takes wear.

Use it once in a space rather than repeatedly.

Backlit feature walls and partition panels
Bar fronts and reception desk faces
Bathroom vanity tops and clad walls
Tabletops and inlay work
Backsplashes away from a cooktop

A stone carrying four colors and heavy banding needs somewhere quiet around it, and two Multicolor panels in the same room compete rather than complement.

Bar fronts and reception desks are the natural fit. They are vertical, they see no wear, they are usually lit deliberately, and they are exactly where a business wants something people remember.

What it does not suit is any working surface. It scratches, it etches and it chips.

How Do You Clean Multicolor Onyx?

Three habits, and gentleness is the theme.

Use Only Onyx-Safe Cleaner

Onyx is calcite, so vinegar, lemon and most bathroom products etch it on contact. A pH-neutral stone cleaner is the only safe daily option.

Wipe, Never Scrub

The stone is soft enough that abrasive pads leave visible scratching. A soft damp cloth handles anything a feature surface realistically meets.

Dry It Afterwards

Water marks show on a polished translucent surface, and standing moisture is worse here than on a dense stone. A dry pass finishes the job.

We stock specially-formulated stone cleaners at every branch, so pick one up when you collect your slab.

How Do You Care for Multicolor Onyx?

Three habits that protect a fragile stone.

Seal It When It Needs It

Onyx is porous and stains readily, so sealing is not optional. Reseal when it needs it, which can be as often as every six months, and a vanity meeting cosmetics may want it sooner.

Keep Acids Away Entirely

Limescale removers, toilet cleaners, cosmetics and citrus all etch calcite. On a translucent stone an etch disrupts how light passes through, not only how the surface looks.

Protect the Edges

Onyx chips more readily than granite or marble, and the banding creates natural planes of weakness. Eased or bullnosed profiles survive far better than sharp arrises.

Is Multicolor Onyx Good for Kitchen Countertops?

Better said now than after fabrication.

No. We would not specify onyx for a working kitchen counter, and this applies to all three of the onyx varieties we carry.

The stone is soft, porous and brittle, closer to alabaster than to granite. A kitchen counter is the most demanding surface in a house and this is among the least suited materials for it.

Calamansi, vinegar and tomato etch it on contact, and no sealer prevents that.
Knives scratch it, and marks show plainly on a polished translucent surface.
Edges chip where pans and pot handles catch them, and the banding makes that likelier.
Damage is expensive to tolerate and expensive to replace.

If you want this stone in a kitchen, put it on an island face or a lit splashback away from the hob. Material where it is seen, something durable where the work happens.

For the counter itself, granite or engineered quartz will serve you far better at a fraction of the cost.

Does Multicolor Onyx Need Sealing?

Non-negotiable, but on the stone’s schedule.

Yes. Onyx is among the most porous stones we carry, so sealing matters more here than on any granite or marble.

Oil, cosmetics, wine and cleaning products all soak into unsealed onyx. A stain in a translucent stone is worse than one in an opaque stone, because it shows whether the panel is lit or not.

Test it when you are unsure. Put a small pool of water on the surface, leave it 15 minutes and wipe. A darker patch where the water sat means the sealer has worn through.

Sealing resists staining and does nothing for etching. Acid dissolves calcite on contact, so keeping citrus and descalers off the stone is a separate discipline.

Frequently Asked Questions

How is Multicolor Onyx different from Honey and Mint?

It carries several colors in one slab rather than committing to a single palette. Honey Onyx is warm amber and gold, Mint Onyx is cool green and cream, and Multicolor runs ambers, greens, creams and rusts together.

All three are priced the same and behave identically. The difference is entirely visual, and it changes which light suits the stone.

What light temperature suits a multicolored slab?

Neutral white, around 4000K. A warm source drowns the greens and a cool source deadens the ambers, so anything at either extreme sacrifices half the slab.

Dimmable fittings help, because the color balance shifts noticeably with intensity. Test with your actual slab before the fixing is finalised.

Should you book-match Multicolor Onyx?

On a large panel, yes. Book-matching mirrors the banding across a seam and turns a busy stone into a deliberate, symmetrical composition.

The slabs must be cut in sequence and kept together, so ask when you order rather than at fabrication. Expect a premium for the pair.

Why do two slabs look completely different?

Because the mineral content of the water changed as each band was deposited. Color distribution is genuinely unpredictable, and this is the most variable stone we sell.

Never buy Multicolor Onyx from a photograph or a small sample. Select the actual slab, ideally with a light behind it.

Does Multicolor Onyx etch and scratch?

Yes to both. It is calcite, so any acid dissolves a microscopic layer on contact, and it is soft enough that knives and grit mark it readily.

Neither matters on a vertical feature surface, which is where this stone belongs. Both matter enormously on a working counter, which is where it does not.

Why do onyx slabs have mesh backing?

The stone is brittle and the banding creates natural planes of weakness, so a bonded fiberglass mesh holds the slab together through transport, fabrication and installation.

It is standard for onyx rather than a defect. Mesh does affect backlighting, so tell your fabricator early if the panel is to be lit.

Can Multicolor Onyx be used in a bathroom?

Yes, and a vanity or clad wall is one of the better uses. Bathrooms see far less abuse than kitchens, and a lit onyx wall behind a basin is a genuine feature.

Keep cosmetics, toners and limescale removers off the surface, since all of them etch calcite as readily as citrus. Seal it when it needs it.

Where can you buy Multicolor Onyx in the Philippines?

Stone Depot carries Multicolor Onyx at all five branches: Cebu, Davao, Cagayan de Oro, Iloilo and Sta. Rosa, Laguna. Onyx is indent order, so your slab is brought in for your project rather than held in the yard. Ask your branch about current lead time.

This stone needs a clear brief before ordering, more than any other we sell. All branches are open Monday to Saturday, 8 AM to 5 PM, and you can email email@stonedepot.com.

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