White Cliff has the potential to show black spots (but we knew that before-hand) -- ours has two.
Here's the background -- The following notice is found on Cambria's website and the back of the sample: "White Cliff™ is a unique, pure white color and can show markings caused during normal use."
I remember reading this just before we signed the contract with our fabricator/installer. Naturally, I needed to know more. Here's the email trail between me and the local fabricator/installer I was working with:
Me: Can you or your Cambria rep give any further insight on this statement -- its rather vague. I understand its a very pure looking color, with hardly any flecks/specks, but the finish itself is the same (as the Whitehall, for instance) and I'm not following how it will mark -- scuff? chips?
Local Fabricator/Installer: The further insight that I can offer you is what Cambri notes on our price list and I have copied and inserted below for you. The White Cliff is just as hard and “scuff proof” as any of the other colors in the line and equally as with the Caesarstone. BUT, we nor Cambria will address any dissatisfaction with regard to their precautions noted below.
White Cliff is an extremely pure bright white that will show markings during normal use. It may contain some small black or other color variations or spots and these should be considered during your layout process and worked around if possible. During the manufacturing process every effort is made to minimize these issues but they can not be totally eliminated. Please take extra care during your inspection and layout process to identify and address these issues.
It is extremely important that you educate your customers and set the correct expectations prior to starting any fabrication! Variation in the natural quartz in all Cambria color, pattern, size, shape and shade are inherent and unique characteristics are to be expected with the product. These variations do not affect product performance. Please be sure to thoroughly inspect all Cambria slabs prior to starting any fabrication. Thank You.
Update: Having now lived with the counters for ~5 years, we would not make the same decision. If you'd like more info, drop us an email.