The People Who Make It All Happen

Who We Are

Quarzo Collection and Vena Collection are proudly manufactured in the USA by the award winning team at Tiffany Marble. Quarzo Collection, Vena Collection, and Tiffany Marble are trademarks of Prock Operations, Inc. For over 30 years, Prock Operations has been building and manufacturing in the heart of the Midwest.

Quarzo Collection™ and Vena Collection™ vanity tops are offered with ten different bowl styles and a variety of custom options. Seamless tops are available up to 144” in length and we can produce custom angle style tops, such as L-Shape, Banjo, Clip Cut, and more.

To ensure extra strength, Quarzo Collection vanity tops are crafted to a ¾” thickness. Solid surface tops have a thickness of ½” with a typical edge build-up of 1½”.
A high-quality, non-yellowing, and scratch-resistant gel coat is applied to all our cultured products, enhancing the vibrancy and richness of colors that will not discolor over time. This clear, stain-resistant gel coat measures a minimum of 18 – 22 mils when dry and increases the durability and luster of our products.

Most special orders can be processed and manufactured in as little as 2-3 weeks. In addition to our wide selection of standard colors, we also have the ability to produce custom colors and textures. (Certain restrictions apply.) Contact us for details by calling (866) 678-2796.

Learn more about the Prock Operations’ family of products at


ICPA/NAHB (International Cast Polymer Association/National Association of Home Builders) ICPA/NAHB certification mandates our products undergo 70 different tests for resistance of colorfastness, burning, thermal shock, workmanship, finish, aging, and structural integrity. Testing by ICPA/NAHB is randomly performed at least four times each year. We perform on-site testing at our manufacturing facility to ensure our products not only meet certification standards, but exceed them.