Why Does Travertine Have Holes? What the Texture Actually Tells You

But the holes are only the beginning. Their size, density, and finish can tell you quite a bit about what you're looking at, especially when travertine is used in a lighting fixture.

So, Why Does Travertine Have Holes?

Travertine is a calcium-carbonate natural stone that commonly forms around mineral-rich springs. As water reaches the surface, pressure changes allow dissolved carbon dioxide to escape, and calcium carbonate precipitates from the water to form the stone.

Because of the way travertine forms, gases can become trapped within the stone, leaving behind the porous structure that is characteristic of travertine. The Natural Stone Institute describes these voids as a common characteristic of true travertine.

So when you see a small opening in a piece of travertine, the first question shouldn't be:

In many cases, that's exactly what you're seeing.

The Holes Are Part of the Stone—Not Something Added Later

This is one of the easiest things to misunderstand about travertine.

The openings you see are not simply drilled into the surface to make the stone look natural. They can be part of the material's original structure.

When travertine is cut, different sections of that internal structure become visible. One area may reveal several small pores, while another section of the same piece may appear much denser.

That's why two pieces of travertine can look noticeably different even when they are made from the same type of stone.

For a lighting fixture, this variation can become part of the design. Instead of seeing a perfectly repeated surface, you see a material with its own texture and character.

Why Are Some Travertine Pieces Full of Holes While Others Look Almost Smooth?

Not all travertine looks the same. You may see:

• Tiny pinholes
• Larger open cavities
• Areas with very few visible openings
• Denser sections with subtle texture
• Different levels of veining and tonal variation

Several factors can affect what you see, including how the stone formed, where the piece was cut, and how the surface was finished.

A piece with many visible pores is not automatically lower quality. A smoother piece is not automatically less natural. The Natural Stone Institute specifically notes that holes themselves are not the measure of travertine quality; factors such as the stone's structure and finish matter more.

So don't use a simple rule like:

Neither tells the whole story.

Filled vs. Unfilled: What Happened to the Holes?

Here's another reason two pieces of travertine can look so different.

During fabrication, some of the stone's surface-connected voids can be filled, while others can be left unfilled. Filled travertine is typically finished to create a more continuous surface, while unfilled travertine keeps more of its natural openings visible.

Neither finish is automatically better. They simply create a different look.

What Happens When Light Hits Those Pores?

This is where travertine becomes especially interesting as a lighting material.

Travertine does not create the same kind of inner glow associated with translucent stone. Instead, its visual character comes from the surface itself.

When light falls across a porous surface, the openings, edges, and shallow changes in depth create subtle variations between light and shadow. Directional light can make the texture more noticeable, while softer ambient light keeps it quieter.

The point is not that every pore catches the light. It's that an uneven surface gives light something to interact with.

That is part of what makes a travertine lamp look different from one made with a completely smooth, manufactured surface.

Travertine Does Not Light Like Alabaster

Travertine and alabaster are both natural stones, but they behave very differently in lighting.

So if you're choosing between the two:

Neither is trying to do the same thing.

Can You Tell Good Travertine by Looking at the Holes?

Not by the holes alone.

A few visible pores don't prove that a piece is high quality, and a relatively smooth surface doesn't prove that it isn't natural travertine. Instead, look at the whole piece.

Look at the Texture

Natural travertine should have variation rather than a perfectly repeated surface.

Look at the Veining

Color and veining can vary across different sections of the stone. Natural Stone Institute notes that travertine can show substantial variation in color, texture, hole size, and veining.

Look at the Material Description

If you're buying a travertine light, check whether the product description clearly identifies the actual material.

Terms such as “travertine look,” “travertine finish,” or “travertine-inspired” can mean something different from a fixture made with actual travertine.

Look at Close-Up Photos

A full-room photograph can hide most of the stone's character.

Close-up images can help you see:

• Pores
• Veining
• Color variation
• Surface finish

Look at Lit and Unlit Photos

If the travertine is part of the visible lighting design, compare the material in both conditions. The surface can read differently once light and shadow enter the picture.

What to Look for When Buying a Travertine Light

You don't need to become a stone expert before buying a travertine lamp. Just check a few things.

These details will tell you much more than simply counting the holes.

Look at the Stone Differently

Those little holes are not something you need to look past when choosing travertine.

They are part of the material's natural structure, while their size, distribution, and finish help determine how the surface looks.

When you're choosing a travertine light, don't search for the most perfectly uniform piece. Look at the pores. Look at the veining. Look at the finish. Then look at what happens when light reaches the surface.

The texture isn't a flaw to hide. It's part of what makes travertine worth looking at.

Explore Mooijane's Travertine Collection to see how natural stone texture translates into lighting.

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