Travertine, vein cut

https://www.walkerzanger.com/slab/travertine-slabs.html

From the photo it looks like real travertine, but maybe it is a quartz or a porcelain product? Hard to guess without touching the product. I saw a similar look in a porcelain tile recently.

It does look like travertine, though much more in the gray family on my screen than travertine usually is. Travertine usually has more taupe in it. In addition, travertine can easily etch and can pit, so it is an unlikely material for a hotel bathroom. Because of that and because of the color, I think Chispa is correct that it is a porcelain product designed to look like travertine.

Here is a link to one, the first one that came up from a 5-second google. There are many others. https://ceramictechnics.com/product/porcelain-solutions-u-s-travertine/

There’s a cultured marble production facility a few miles down the road. They produce something exactly like that, plus a half dozen other stone lookalikes.

I'm guessing cultured marble made to mimic travertine.

Or, quartz...I've just not seen a quartz yet like that. I highly doubt a hotel used travertine in their bathrooms so I feel like it has to be a man-made product that resembles it.

Reminds me of some of the Corian patterns.

Looks like this:

Porcelain Slab - Travertino Grigio Venato Bocciardato https://www.stonesource.com/product/travertino-grigio-venato-bocciardato/

Thanks everyone! It has a subtle sparkle to it so I think the travertine might be ruled out?
Here’s a video I also captured. Towards the end of the clip, there’s a closeup of the backsplash and it’s what makes me think it’s something like quartz?

Shoot, looks like you can’t upload videos 🤦🏻‍♀️

I don’t think there’s any reason to believe that it’s not a natural stone like travertine. Hotels do use marble like crazy, after all. It’s definitely not cultured marble.🙄

"Hotels do use marble like crazy, after all."

Yes, and some architects are crazy for specifying it for the men's room floor in a zillion-dollar casino/hotel in Las Vegas. The urinal area was beyond disgusting.

It’s a man made composite stone material. Formerly known as cultured marble, now rebranded as “composite stone”, and with a few tricks from the Corian knockoff industry. The slab stone supplier and fabricator that we work with has a factory that produces that look directly next to their slab yard. They concentrate on supplying hospitality projects, not residential, as several major hospitality design groups are local.

The 2020 designs are far advanced of the old 70’s swirly stuff with molded in bowls. The tops are designed for specific undermount china bowls, and the molds are created to look solid at the edges with those bowls in mind. They also produce the set on splashes that complete the mimic of natural stone. The showroom has slab walls for showers in the vein cut silver travertine and calcatta marble look both. As well as a whole undermount tub and deck that looks carved out of stone. Not at all like the giant burgundy corner tubs that people may have in their mind from the description.

Lowes sold US Marble, which made similar to that, with the travertine, but went out of business. They currently sell a similar, but less detailed, product under the Transolid brand. Some regional also carry similar suppliers for material that looks like the OP’s photo. If you can find a clerk in the plumbing department that knows about it. They revamped that department and took away a lot of in store special order ability. Some stuff can now only be ordered online, without any assistance.