CUPA 5
Non-carbonated slate formed through tectonic compression. Dark gray slate with a split surface.
Split to an average thickness of 5 mm, 6.5 mm, 7.5 mm, and 9 mm
Stone shape:
Rectangle
Options
R – Relief (Relief):
- Naturally textured surface that retains the stone’s natural roughness.
H – Honed:
- Smooth and matte surface with a light polish.
Natural – Natural:
- Raw, untreated surface that closely resembles how the stone appears after mining.
Origin
Valdacali quarry
Pusmazán (Orense) Spain
Start Date of Operations
Operating since 1975.
Dimensions
Sizes: Ranges from 20 x 15 cm to 60 x 45 cm
Thickness: 5 mm, 6.5 mm, 7.5 mm, and 9 mm
Options
R, H, Natural
Technical Specifications
| Water Absorption | Non-carbonated Carbon Content | MOR (Bending Strength) | SO2 Exposure Test | Freezing and Thawing Test | Heat Cycle Test |
|---|---|---|---|---|---|
| 0.24% Code: W1 (< 0.4%) | 0.30% Meets requirements (< 1.5%) | Longitudinal 40.8 MPA | S1 | Meets requirements < 0.6% | T1 |