About
Material Type:
Slate
Origin:
Finland
((Rahinkkalanvaar, Puolanka, Kotila, Oulu))
Priamry Color(s):
Black
Recommended Usage:roof tiles, kitchen and bathroom countertops, monuments, stairs, building stone, ornamental stone, interior, exterior wall and floor applications, mosaic, waterjet pattern
Additional Names:Puolanka Slate,Lappia Silver
Finished Surface:Flamed,Bush Hammered,Tumbled,Brushed,Honed,Split,Machine Cut,Natural Surface,Sandblasted,Acid Washing,Combed,Leathered,Water Jet,Filled,Chiseled,Pickling
Testing
Water
Absorption:0.23 By weight %
Density:2860 kg/m3
Compressive
Strength:69 Mpa
Description
A silver-coloured, folded mica schist from Puolanka.
Schistose and muscovite bearing layers folded in small scale. Quarried and processed like granite.
Mineralogical composition
Muscovite mica:37%
Biotite mica:18%
Quartz:38%
Item Details
Quarry Location:
(Rahinkkalanvaar, Puolanka, Kotila, Oulu)
Recommended Usage:
roof tiles, kitchen and bathroom countertops, monuments, stairs, building stone, ornamental stone, interior, exterior wall and floor applications, mosaic, waterjet pattern
Additional Names:
Puolanka Slate,Lappia Silver
Finished Surface:
Flamed,Bush Hammered,Tumbled,Brushed,Honed,Split,Machine Cut,Natural Surface,Sandblasted,Acid Washing,Combed,Leathered,Water Jet,Filled,Chiseled,Pickling
Water Absorption:
0.23 By weight %
Density:
2860 kg/m3
Compressive Strength:
69 Mpa
Description
A silver-coloured, folded mica schist from Puolanka.
Schistose and muscovite bearing layers folded in small scale. Quarried and processed like granite.
Mineralogical composition
Muscovite mica:37%
Biotite mica:18%
Quartz:38%