1 Definition
1.1 Definition
Jasperoid is a rare, peculiar type of metasomatic alteration of rocks
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
1.2 History
1.2.1 Origin
1.2.2 Discoverer
1.3 Etymology
From silica, the main mineral content of Jasperoid
From Alkalic Igneous complex near Loch Borralan in northwest Scotland
1.4 Class
Sedimentary Rocks
Igneous Rocks
1.4.1 Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Medium Hardness Rock
1.5 Family
1.5.1 Group
1.6 Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock