Abstract
Potassium-rich silica-undersaturated mafic igneous rocks are characterised by the presence of leucite, K-feldspar, clinopyroxene and Fe–Ti oxides. Plagioclase feldspar commonly appears in tephrites, tephritic phonolites and phonolitic tephrites. In sodium-rich potassic rocks such as basanites, forsteritic olivine appears along with nepheline.
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Gupta, A.K. (2015). Mineralogy. In: Origin of Potassium-rich Silica-deficient Igneous Rocks. Springer Geology. Springer, New Delhi. https://doi.org/10.1007/978-81-322-2083-1_2
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DOI: https://doi.org/10.1007/978-81-322-2083-1_2
Publisher Name: Springer, New Delhi
Print ISBN: 978-81-322-2082-4
Online ISBN: 978-81-322-2083-1
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