Why quartzite specifically? Lots of problems with quartzite with water absorption and staining, and bathrooms = water. Simple board search and you'll get lots of hits on the subject.

You'd be much better off getting granite or a man-made such as quartz or Corian -- much less chancy than quartzite in a bathroom.

Instead of looking at the stone yard, find a fabricator. They may have a remnant that is perfect for your bathroom.

I would not try to math the rest of the house - I've always felt that a bathroom is a place to do something different.

mxk3 z5b_MI:

Granite: the slab yard I visited last week told me that they have very little inventory in granite. I have worked with them previously, and feel confident in their labeling of stones. They had a gorgeous crystallo slab (that can be backlit), but that's way above my budget.

Corian: I have not seen it used anywhere in my area; it would be a challenge to find a fabricator.

Engineered Stone -- Problem #1:

Initially, I selected three Cambria colors, but found issues with each one:

a) Inverness Frost in a matte finish -- the fabricator told me that they recommend matte because of the uneven texture of this e-stone -- lots of threads on the Kitchen Forum about problems with using Cambria in a matte finish

b) Everleigh in a polished finish -- lots of complaints on the Kitchen Forum about difficulty in templating this e-stone because of its bold veining -- cannot get edges to match

c) Macbeth -- I was not able to see a full slab of it -- the two samples I saw were very different from each other; and I think the white background color is too stark and cold-looking

Engineered Stone: Problem #2 -- yellowing

Ten years ago, I installed Caesarstone Blizzard in the upstairs primary bathroom (minimal use) and quartzite in the downstairs guest bathroom (daily use). The e-stone has yellowed from UV light and mineral deposits in the water (I have a full-house water softener). The difference is visible on the shower curb, which is more yellow on the side of the curb that is in the shower. No problem with the quartzite curb.

See photos below. The line down the center of the Caesarstone curb is not grout -- this is all one piece of the e-stone. I have tried everything -- including SoftScrub with bleach.

Engineered Stone: Problem #3: -- ban on e-stone

I live in Los Angeles County, which is considering a ban on e-stone (see a separate thread on this).

I love the Poseidon and would use it as a backsplash too. You could also use it on the shower dam and on top of the shower bench if you’re doing one.

I love the Poseidon, also, but I think my son is leaning toward the Perla Venata. I am not planning on a shower bench, but would use the stone on the shower curb and on the cap for the pony wall.