Onyx Blue

Onyx Blue marble is a spectacularly luxurious translucent stone, defined by a deep, luminous steel-blue and silver-grey base that captivates the eye. Across this cool, expansive canvas, you'll find flowing formations of white clouds, elegantly complemented by graceful golden-amber veining. This extraordinary combination creates a magnificently oceanic, almost celestial quality on its polished surface. The cool blue-grey palette, accented with warm golden highlights, gives it an extraordinarily sophisticated, almost sapphire-like presence, making it a truly unique choice.

This incredible marble originates from the rich quarries of San Luis, Argentina, a region celebrated for its geological treasures. Onyx Blue is a non-foliated metamorphic rock, born from ancient limestone and dolostone undergoing immense heat and pressure deep within the Earth's crust. It's during this intense transformation that the calcite crystals recrystallize, and the unique accessory minerals present shape the stone's magnificent steel-blue base, white cloud formations, and golden-amber veins, telling a story millions of years in the making.

With its exceptional translucency and dramatic blue-gold palette, Onyx Blue is truly destined for the most show-stopping luxury worktops, grand bathroom vanities, or breathtaking feature walls. While all marble requires a little care – regular sealing helps protect its porous surface, and we always advise caution with acidic spills – the aesthetic reward is immeasurable. At In2Stone, our passion is bringing these natural wonders into your home. We approach every hand-templating, cutting, and installation with meticulous craftsmanship, ensuring your Onyx Blue marble is transformed into a seamless, enduring centrepiece, reflecting our commitment to luxury results and honest pricing.