Photo source: Lyons Sandstone
Official source image published with site-owner authorization; source-owner reuse permission remains pending. Original downloaded asset retained unchanged.
Ptarmigan gneiss in the Mosaic veneer format.
Catalogue reference. Confirm the current range and finish with the supplier.
Material sources
Ptarmigan is gneiss quarried in the foothills west of Denver, Colorado, and offered and fabricated by Lyons Sandstone. The supplying quarry owner has not been identified.
- Listed supplier
- Lyons Sandstone
- Quarry / operation
- Not identified in source
- Location
- Colorado
- Color families
- Not listed
- Supply route
- Veneer, pavers and slabs.
- Listing source
- NSI catalogue · source checked 29 Sept 2026
- Photograph
- Sourced photograph · checked 2026-09-29
No verified MSHA association recorded.
Research details
No individual MSHA permit is assigned to this material.
Independent source checks
- U.S. material origin
- VERIFIED
- Supplier relationship
- VERIFIED
- Material identity
- VERIFIED
- Producer relationship
- UNKNOWN
- Quarry relationship
- UNKNOWN
- Quarry location
- UNKNOWN
- Operating record
- UNKNOWN
- Photo source
- VERIFIED
- Photo permission
- PENDING
- Technical data
- UNKNOWN
Each check stands on its own. A photo or coordinate review does not change a confirmed material identity or producer relationship. Operating records do not guarantee current inventory.
Ask the supplier about current availability, material range, fabrication and test data for your application. A listing or MSHA status does not establish supply readiness.
Lyons identifies Ptarmigan as Colorado-quarried gneiss and describes its origin in the foothills west of Denver. Lyons documents supplying and fabricating this material; the supplying quarry owner is not identified.