Gray Semi-Precious Stone Countertop
Gray semi-precious stone countertop is a luxury surface made from hand-selected gemstones such as gray agate, labradorite, and quartz crystal, individually cut and bonded with epoxy resin to form a solid, non-porous slab. Each piece is unique, shaped by millions of years of natural mineral formation. The result is a surface that offers both functional durability and the visual depth of a natural gemstone.
Getting your slabs delivered is simple with Nova Tile and Stone. We ship to all 48 contiguous U.S. states, delivering directly to your fabricator with slabs safely secured on an A-frame. Please ensure your fabricator has a forklift and slab boom or clamp on site for unloading.
Prefer to pick up locally? Store pickup is available at all four of our showrooms. Just bring a properly rated truck and A-frame, and our team will handle the loading. We recommend scheduling an appointment in advance so everything is ready when you arrive.
Contact us for a custom freight quote.
What Makes Gray Semi-Precious Stone Countertop Unique
This type of surface draws its appearance from the natural mineral composition of the gemstones, no two slabs are identical. Gray agate displays soft concentric banding formed within volcanic cavities as silica-rich water crystallized into chalcedony layers.
Labradorite, first identified in Labrador, Canada, and also sourced from Madagascar and Finland, produces shifting hues of blue, green, and gold through labradorescence. Quartz crystal brings a translucent, light-catching quality to the slab. Each gemstone contributes a distinct visual character within the same refined palette.
Agate Slab
Semi-Precious
Dimensions: 126" × 74" (64.75 sq ft)
Thickness: 2.0 cm
Finish: Polished
Store Location: Reno, NV
Warehouse: E10B
Discover Other Semi-Precious Stone Colors
While gray semi-precious stone offers a refined and versatile look, other colors in the collection highlight the same dramatic depth, translucency, and natural gemstone character.
Blue Agate
Blue agate mesmerizes with striking bands of azure, cobalt, and gray tones that flow in concentric patterns across translucent surfaces. This semi-precious stone features natural crystalline formations and color gradients that create visual depth and movement.
When backlit, the stone's inherent translucency reveals hidden layers and intricate details, transforming countertops and feature walls into captivating focal points that blend natural artistry with contemporary elegance.
Durability and Performance
Bonded with epoxy resin, this surface is non-porous and resistant to moisture, staining, and UV fading. Gray agate and quartz crystal, both composed primarily of silica (SiO₂), rank between 6.5 and 7 on the Mohs hardness scale, comparable to gray quartzite countertop, though different in composition and visual character.
Labradorite ranks between 6 and 6.5 on the same scale. These hardness ratings, combined with the non-porous epoxy bond, make it well-suited for both high-use kitchen applications and decorative feature installations.
Design Applications
Beyond durability, gray agate and quartz crystal slabs are semi-translucent and can be backlit to highlight internal banding and crystal formations, a popular feature for kitchen islands, bar tops, and feature walls.
This versatility makes semi-precious stone a strong surface choice for bathroom vanities, accent walls, and fireplace surrounds as well. The neutral tone integrates naturally with contemporary, minimalist, and layered interiors.
Discover Our Latest Slab Insights
Frequently Asked Questions
The most common options include gray agate, labradorite, and quartz crystal. Gray agate is known for its layered banding, quartz crystal adds translucency and light-catching depth, and labradorite is valued for its reflective flashes of blue, green, and gold. Each slab has a distinct structure and pattern, so no two pieces look exactly the same.
Yes. Gray agate and quartz crystal generally rank between 6.5 and 7 on the Mohs hardness scale, while labradorite typically falls between 6 and 6.5. Because the slab is bonded with resin, the surface is non-porous and resistant to moisture and staining. To protect the finish, it is still best to avoid placing hot cookware directly on the surface and to use trivets when needed.
Yes. Gray agate and quartz crystal are semi-translucent and can be backlit to emphasize their internal structure, banding, and crystal detail. This effect is especially popular for kitchen islands, bar tops, and feature walls. Labradorite is usually appreciated more under directional lighting, which helps reveal its natural reflective flashes.
Yes. Store pickup is available at all four Nova Tile and Stone showroom locations. You will need a properly rated truck and A-frame suitable for transporting stone slabs, and our team can assist with loading. Scheduling an appointment in advance is recommended so your order is ready when you arrive.
Yes. We deliver slabs throughout the 48 contiguous U.S. states. Semi-precious stone slabs require specialized handling, packing, and freight delivery, and they are typically shipped directly to your fabricator. Please make sure your fabricator has the proper unloading equipment, such as a forklift and slab boom or clamp. Contact us for a custom freight quote.
Transform Your Space
Nova Tile and Stone carries an extensive selection of slabs for countertop applications, vanities, and feature installations. Visit our showrooms in Reno, Sacramento, Minden, and Fernley to evaluate slab sizing, translucency, and surface finish under real lighting.
Our team can guide you through material selection, thickness
options, and edge profiles. Browse our inventory and discover what this
exceptional surface can do for your space.