Onyx Slabs vs Agate Countertops
Onyx slabs and agate countertops are different in key ways. Understanding these differences is important. Both are valued for their beauty, but they provide different looks and uses.
Aesthetic Differences
Onyx slabs have striking patterns and a see-through look. This makes them ideal for bold statement pieces. Agate countertops are usually made from agate slices. Agate is a type of quartz. These slices are glued together with resin. This gives agate countertops a more uniform appearance with a glossy finish.
Durability and Maintenance
Onyx is softer and more porous than agate, making it more susceptible to scratches and stains. This means that onyx slabs require regular sealing and careful maintenance. Agate countertops are durable and easy to maintain. This makes them a great choice for busy areas like kitchens and bathrooms.

Onyx Slabs
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Material: Onyx is a natural stone formed from calcite (similar to marble).
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Look: Known for its translucent, swirling patterns and rich, flowing colors. It can often be backlit for a dramatic effect.
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Finish: Usually shiny and smooth. Comes in slabs for walls, counters, or decor.
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Feel: Softer and more delicate than other stones. This makes it better for low-traffic areas or decorative use.
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Maintenance: Seal and care for it gently. It’s soft and can etch easily.

Agate Countertops
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Material: Usually made from slices of agate crystals, which are a type of quartz. These slices are bound together with resin to form slabs.
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Look: Eye-catching with vivid colors and crystal-like formations. Every piece is unique, often resembling gemstones.
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Finish: Usually high-gloss; it can also be backlit for a stunning, luxurious look.
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Feel: Much harder and more durable than onyx due to its quartz base and resin.
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Maintenance: Easier to maintain than onyx; more resistant to scratches and stains.