About
Material Type:
Slate
Origin:
Finland
((Rahinkkalanvaar, Puolanka, Kotila, Oulu))
Priamry Color(s):
Grey
Recommended Usage:Building stone, roofing, countertops, sinks, monuments, pool coping, sills, ornamental stone, interi
Additional Names:Puolanka Slate,Lappia Silver Slate
Finished Surface:Honed, Aged, Polished, Sawn Cut, Sanded, Rockfaced, Sandblasted, Bushhammered, Tumbled
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:
Building stone, roofing, countertops, sinks, monuments, pool coping, sills, ornamental stone, interi
Additional Names:
Puolanka Slate,Lappia Silver Slate
Finished Surface:
Honed, Aged, Polished, Sawn Cut, Sanded, Rockfaced, Sandblasted, Bushhammered, Tumbled
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%