Which stones come in white
Ask for a white slab and the answer could be marble, quartzite, sintered stone, porcelain, limestone, granite or onyx. Marble accounts for the largest part of what is available, with quartzite and sintered stone behind it, and the rest in smaller numbers.
In most colors the material is decided before the shade. Green almost always means marble or quartzite; black narrows quickly too. White is the exception, because every one of these materials produces a pale, veined surface, and photographed at a distance they are genuinely difficult to tell apart. The choice that follows is therefore not about the look at all.
How each white stone behaves
Marble is calcium carbonate, which reacts with acid. Quartzite is quartz, which does not. Sintered stone and porcelain are manufactured instead of quarried, and they are not porous at all. Those three facts produce three different kitchens.
In practice the question is what happens when something acidic sits on the surface. On marble the polish goes flat in that spot, and the marble slabs here are sold with a sealing regime accordingly. What that chemistry is and how far sealing goes belongs to marble slabs. On quartzite and on the manufactured materials that particular problem does not arise. The chemistry behind it is set out on marble slabs.
Slab sizes and lots
Most of these slabs have no published dimensions at all; the size field reads Random. That is not an omission. A natural slab is sawn from a quarried block and comes out at whatever size the block allowed, so each piece is measured individually instead of cut to a catalog figure.
The manufactured materials are the opposite. Sintered stone and porcelain arrive as sheets at fixed dimensions, which makes them predictable to plan and to price, and means a large island can sometimes be covered in one piece where natural stone would need a seam. Whichever material is chosen, a fabricator works from the actual slab rather than from a specification.
Slab thickness
Two standards dominate and the thicker one leads here: 3 cm ahead of 2 cm. That split matters more in white than in most colors, because white is the color people take into kitchens, and a kitchen is where the thickness decision actually bites.
What each thickness is for, and why a thinner sheet can still go on a kitchen, is set out on the stone slab page.
Polished and honed
Polished accounts for most of what is here, with honed the main alternative and a small number of textured, leathered and lappato finishes behind them. On a white stone the choice does more work than it does on a dark one.
A polish reflects, which makes a pale room brighter and shows the veining at its most defined; it also picks up fingerprints, and on marble it makes any flattened spot obvious against the surrounding shine. A honed surface is matte, so it reads softer and hides small marks far better, at the cost of some of the depth in the pattern.
Veining
Almost every slab here is described by its veining, whatever the material underneath. That is the real subject of a white stone: the field is pale and more or less uniform, so the pattern running through it carries the entire visual decision.
Vein weight and vein color do most of the work. A fine gray figure spread evenly reads quiet and architectural; a small number of heavy veins in gold or warm gray reads dramatic and puts the slab at the center of a room. The same distinction appears across materials, because the manufactured stones are printed and pressed to imitate exactly these patterns, so the choice of character is available whichever chemistry is underneath.
Choosing a white slab
For a kitchen work top used hard and cleaned without ceremony, the manufactured materials and quartzite remove the maintenance question entirely; white granite belongs in that group too, being igneous and chemically inert, though it is scarce in this color. For a bathroom vanity, a fireplace or a feature wall where acid and heat are not in play, marble offers depth and variation nothing else quite reaches, and limestone sits alongside it as the softer, quieter option with less figure and a more absorbent surface. Onyx is a different proposition again, translucent enough to be lit from behind, and bought for that rather than for a countertop.
Almost everything here is described for work surfaces, with kitchens and bathrooms named most often. The material pages set out each one in full: marble, quartzite, granite, porcelain and sintered stone.
