Powered by the Natural Stone Institute.
As a reminder, because natural stone is a product of nature—with variations in appearance, availability, and performance-we strongly recommend working with a local stone professional to ensure the best fit for your project's goals and conditions. Visit our Member Directory to identify local fabricators, installers, and distributors. Member Directory >
Developed by the North American Quarry Advocacy Group.
Created by industry leaders, this resource reflects the experience and insights of quarry professionals across North America. It’s built to make specification easier —reliable, practical, and rooted in real-world application.
Genuine, Versatile, Unique, Durable, Sustainable, Easy to Maintain
These aren’t just qualities—they’re what make natural stone a smart, sustainable choice. It brings unmatched character, strength, and low-maintenance appeal to any project.
Shaping the Industry & Trusted by Professionals
Coldspring
Finishes Available: Natural Cleft, Honed, Leathered, Sawn, Bush hammered, 4 cut, 6 cut, Split, Rock Face. Learn more about Aspen Buff >
Rademan
Finishes Available: Polished, Antique, Honed, Waterjet, Thermal, Split, Sandblasted Fine Stippled, Sandblasted Course Stippled, Bush Hammered, Sawn. Learn more about American Black® Granite >
Vermont Quarries
Finishes Available: Natural boulder, irregular shapes, can contain quarry fractured, broken or sawn ends. Learn more about Aqua Blue Boulders >
Add Your Natural Stone Materials
If you are a quarrier or have exclusive rights to promotion of specific natural stone materials, you may be eligible to create material profiles to display in our Natural Stone Catalog.
Contact the NSI team to confirm eligibility and gain access to the material submission form.