Black Portoro quartz slab

Quartz · Made in the USA

DomesticQuartz

Engineered quartz and mineral surfaces made in the USA. Consistent, durable, and easy to live with.

  • 25 yrResidential warranty
  • 15 yrCommercial warranty
  • 126″ × 71″Nominal slab size
  • 2 cm · 3 cmThicknesses

Made in Texas

From the Press to Your Project

Our domestic quartz is manufactured by Hendrix Industries in Sealy, Texas, just west of Houston.

  1. Sealy, TX

    Pressed

    Hendrix bonds natural quartz into dense, nonporous slabs with consistent color and movement from one slab to the next.

  2. Dallas, TX

    Stocked

    Slabs are held in our inventory, and Hendrix keeps more ready to ship, so matching a color never waits on an overseas shipment.

  3. Your project

    Chosen

    Pick the exact slab in person and get a surface that resists stains, scratches, and the heat of normal cooking.

The Brands

One Maker, Three Surfaces

  • TechnoQuartz®

    Quartz surfaces in eight collections, from soft marble veining to Texas-inspired looks.

    • Adagio
    • Americana
    • Aura
    • Cosmos
    • Legacy
    • Monarch
    • Origins
    • Texas Legends
  • Monarch®

    Luminous quartz and mineral surfaces with bold, striking patterns, inspired by the movement of butterfly wings.

  • Earth Mineral Surfaces®

    Mineral surfaces made with the Synergy+ formula, which reduces crystalline silica to less than 5%.

In Stock Now

Domestic Colors

213 slabs across 10 colors, counted live from our inventory.

Specifications

Rated for Real Kitchens

Average TechnoQuartz® results per ANSI A137.1, as published by Hendrix Industries. Results for individual colors are available on request.

  • < 0.10%Water absorptionASTM C97
  • > 45 MPaFlexural strengthEN 14617-2
  • Class AStain resistanceASTM C1378
  • Class AChemical resistanceASTM C650
  • > 4.8 JImpact resistanceEN 14617-9
  • 4–6Scratch resistance (Mohs)ASTM C1895
  • Class AFire ratingASTM E83
  • PassThermal shockASTM C484
  • PassFreeze–thawASTM C1026

Finishes & Format

Polished
Standard on every color
Honed, Leathered
Special order, select colors
Thickness
2 cm and 3 cm
Slab size
126″ × 71″ nominal

Where to Use It

Countertops
Kitchens, islands, and vanities
Walls
Backsplashes and wall cladding
Outdoors
Not suitable: sunlight etches the resin
Floors
Not recommended: slippery when wet
Bathroom vanity with a white stone countertop

Compare Colors in Person

Quartz looks different under your own light. Visit us in Dallas to see full slabs side by side and choose the color that works with your cabinets and floors.

3915 Halifax Street, Dallas, TX 75247