bn:01095470n
Noun Concept
Categories: Plutonic rocks, Igneous petrology
EN
essexite
EN
Essexite, also called nepheline monzogabbro, is a dark gray or black holocrystalline plutonic igneous rock. Wikipedia
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EN
Essexite, also called nepheline monzogabbro, is a dark gray or black holocrystalline plutonic igneous rock. Wikipedia
A form of silica-undersaturated pyroxene gabbro, containing nepheline and orthoclase as essential constituents. Wiktionary
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Wiktionary