Definition
Borolanite is a variety of Nepheline Syenite and belongs to igneous rocks and contains nepheline-alkali feldspar pseudomorphs which occur as conspicuous white spots in the dark rock matrix
A sedimentary rock, deposit of a submarine turbidity currents and are composed of layered particles
History
Origin
Scotland
European Foreland Basins
Discoverer
Unknown
Arnold H. Bouma
Etymology
From Alkalic Igneous complex near Loch Borralan in northwest Scotland
From Medieval Latin turbiditas, from Latin turbidus (turbid). Turbidity current is from 1939
Class
Igneous Rocks
Sedimentary Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Soft Rock
Family
Group
Plutonic
-
Other Categories
Fine Grained Rock, Opaque Rock
Coarse Grained Rock, Fine Grained Rock, Opaque Rock