Can you post a layout photo so I can visualize where the countertops would be.

What about butcher block for the breakfast bar? It would give it a warm feel and you wouldn't have to worry about mixing stones. That being said there are lots of examples of dark parimeter counters with light islands out there which might give you a sense.

I have some pictures of mixed counters but not usually
two granites.
I am not saying it can't work, just have not found a
visual yet.
Meanwhile here is what I do have that might help you
with some ideas.
~boxer

Using multiple surfaces can work if the look is intentional like you planned it that way, and not hodgepodge like the budget ran out.

Please post a picture.

A stretch of counter that has its own special purpose (like your breakfast bar) could make a real statement in a contrasting material. Without knowing what the rest looks like, I'd say docmamma's idea of butcher block is a good one -- that should go well with anything.

The best example of butcher block I've seen was posted here recently -- look up "small kitchen finally done!" in the search bar at the bottom of the page (not the top).

im trying to figure out how to post a picture on here?

here are pics.. you can see that one side has the black counter top and the other area is where we are putting the breakfast bar.

Here is a link that might be useful: {{!gwi}}

Have you read Buel's "Read me" thread? Lots of info that's helpful to skim before posting, including a thread on how to post pics.

Here is a link that might be useful: New to Kitchens? Posting Pics? Read Me!

It appears you already have a lot going on...two different wall colors, two different floors, two different cabinet colors (or are they the same, lighting may make them look different). My first reaction is you need the same color on the island. I'm not a designer, so keep that in mind.

Sorry debgoody! I must have been typing my last response while you were posting your link.

Another non-designer here, but I second joyce's observation that there's already a lot going on. Are the cabinets actually different, or is that just a trick of the light? I think either a butcherblock or a white countertop could still potentially work on the island, but if you're adding in that additional contrast, I'd paint the walls to a more neutral color, both above and below the chair rail. Actually, even if you were to match the countertops, I think sticking to one paint color will help the flow of the room.

{{!gwi}}

Do you have additional images that show the whole space better? I'm agreeing with the others that it already seems a little busy, but that could just be a function of how the photo is taken here. Incandescent lighting can often make rooms seem more yellow than they are IRL, and the angle of the photo and light from the window can make the island appear to be a much different color.

So, if we can get a better idea of how the room actually looks, then you might get better suggestions.

But, based on the single photo alone, I'd suggest matching the perimeter counters. Quartz does run around $70-$80 a square foot on average, but then, so do most counter materials except for laminate. I don't think you will realize any great dollar savings by choosing something else.

The only other suggestion that I might make would be to paint the island black to tie in with the current counters and get one of the oak butcherblock counters from Ikea to tie in with the perimeter cabinets. That would be a low cost solution using colors and materials that already exist in the kitchen, so you wouldn't be adding more busyness.