Material description

Aurora is a fine-grained, black-red multicolor type granite with a fast growing popularity. The material is quarried in medium quantities in Mäntsälä and mainly used for monuments. It is also suitable for decorations and kitchen countertops, as well as small-sized building projects.

Technical properties

EN_13755 Water absorption 0.07 %
EN_1936 Apparent density 2860 kg/m3
EN_12372 Flexural strength, fresh material 20.1 MPa
EN_12372 Flexural strength, material after freeze-thaw cycles* 17.8 MPa
EN_1926 Compressive strength 194 MPa
EN_14157 Abrasion resistance 18 mm
EN_13364 Breaking load at dowel hole 2850 N
* after 56 cycles (tested 2016)

Mineral content

Plagioclase 44.0 Wt %
Quartz 25.4 Wt %
K-feldspar 19.3 Wt %
Biotite 6.3 Wt %
Amphibole 3.6 Wt %
Chlorite 1.3 Wt %
Accessory minerals 0.2 Wt %

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