Egger F800 Crystal Marble ST9 Postform Worktop 4100 x 600 x 38mm With its veins full of character in warm grey, which create harmonious transitions to warm wood tones, this marble has a very natural effect. The name F800 Crystal Marble describes its crystalline materiality, which is emphasised by a strong white base and is particularly effective on large surfaces. Here it looks very authentic, as it shows fewer repetitions due to the XL repeat. With the ST9 Smoothtouch Matt surface texture, this marble look is given a classically smooth but modern matt finish.