Aurora

A red and black migmatite from Mäntsälä.

Aurora is a coarse- and medium-grained, foliated, red and black migmatite with a lively pattern. All interior and outdoor uses, especially table tops and interior decoration.

Variation in colour: Considerable
Weather Resistance: Good
Abrasion Resistance: Good

Quarry site: Mäntsälä
Quarrying began in 1988
Amount of Quarries: 5

Mechanical Properties
Density
Water absorption	0,21 wt %
Compressive strength	210 MPa
Flexural strength	14,7 MPa
Hardness	5,8 Mohs

Mineral composition
Plagioclase	60%
Quartz	24%
Biotite	7%
Amphibole	9%