Anorthosite
Fun Fact: It is a coarse-grained rock that emits an attractive blue iridescence.
Introduction: Anorthosite is a coarse-grained igneous rock that often emits an attractive blue iridescence due to the presence of labradorite feldspar.
Distribution: Occurs in the Kunene Complex and some deposits can be found in certain areas of Kaokoland and the Sinclair Sequence.
Composition: Made up from around 90% plagioclase feldspar.
Colouration: White or pale-coloured, often with a speckled appearance due to a copious infiltration of minor dark minerals such as pyroxene.
Uses: Some anorthosite is quarried for building.
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