Material description

Esko Brown is quarried in Taivassalo. It is a medium to coarse-grained, brown granite used in distinguished projects worldwide. This stone is currently not in production and is extracted on demand.

Technical properties

EN_13755 Water absorption 0.14 %
EN_1936 Apparent density 2860 kg/m3
EN_12372 Flexural strength 12 Mpa
EN_12371 Frost resistance, change of flexural strength (after 48 freeze-thaw cycles) 6.7 %
EN_1926 Compressive strength 176 Mpa
EN_14157 Abrasion resistance 17 mm
EN_13364 Breaking load at dowel hole 2450 N
* after 56 cycles (tested 2016)

Mineral content

K-feldspar 40.7 Wt %
Quartz 28.8 Wt %
Plagioclase 21.2 Wt %
Amphibole 6.4 Wt %
Biotite 2.2 Wt %
Accessory minerals 0.7 Wt %

Download