Scottish Mafite

Scottish Mafite has been sourced from numerous quarries and quarry clusters in many different parts of Scotland. The stone, which is mainly microgabbro (dolerite), microdiorite and basalt, comes from dykes and other small intrusions that formed at different times in the geological history of Scotland. The stone was not affected by the Caledonian Orogeny (i.e. it is not deformed). Scottish Mafite was used locally, regionally and nationally, mainly to form paving and masonry but also for millstones and baker's ovens. Scottish Mafite (sourced from large boulders rather than bedrock) is supplied as building stone today.

Building Stone ID 10,174

Geological description

Rock category  
Igneous rock
Stone type  
Dolerite / Basalt / Whin
Source bedrock unit  
Unnamed intrusions of undeformed doleritic-rock and microdiorite, of any age
Colour  
Dark pinkish grey and very dark grey to dark grey
Grain-size  
Very fine crystalline (0.004 to 0.032 mm) to coarse crystalline (2 to 16 mm)
Cohesion  
Strongly cohesive
Water absorption  
Very low
Key constituents  
Pyroxene
Texture  
Granular

Historic significance

Maximum historical geographic reach  
National (score = 3)
Extent of historic building stone quarrying  
Most extensive (score = 4)
Historic significance score  
Most significant (score = 7)

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