Baltic Brown

A brown granite from Ylämaa
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Baltic Brown is a coarse-grained, non-foliated, brown viborgite granite with individual, large, round potash feldspar crystals 15 - 30 mm in diameter, which are surrounded by a greenish plagioclase circle. There is some variation in appearance among blocks from different quarry sites.

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

Quarry site: Ylämaa
Quarrying began in 1972
Amount of Quarries: 6

Mechanical Properties
Density	2680 kg/m3
Water absorption	0,16 wt %
Compressive strength	150 MPa
Flexural strength	11MPa
Hardness	6,0 Mohs

Mineral composition
Potash feldspar	55%
Plagioclase	11%
Quartz	25%
Amphibole	9%