essexite
Sign in to savethumb|upright=1.2|Craigleith, an island in Scotland, composed of essexite
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- Petrology
- Mineralogy
- Geochemistry
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thumb|upright=1.2|Craigleith, an island in Scotland, composed of essexite
Essexite (), also called nepheline monzogabbro (), is a dark gray or black holocrystalline plutonic igneous rock. Its name is derived from the type locality in Essex County, Massachusetts, in the United States.
Excerpted from Wikipedia’s “essexite” article, available under the CC BY-SA 4.0 licence.
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