Information om | Engelska ordet ESSEXITE

Exempel på hur man kan använda ESSEXITE i en mening

• All of the mountains have dark-coloured mafic rock such as gabbro and essexite; some also have large areas of pulaskite, syenite, and other light-coloured rock.
• Utilising the IUGS QAPF diagram of Streckeisen (1974) "essexite" is more formally known as nepheline monzodiorite or nepheline monzogabbro depending on the ratio of orthoclase to plagioclase and the abundance of nepheline.
• With a decrease in silica and reduction in olivine theralite grades into teschenite and with the addition of sodic feldspar, grades into essexite.
• Barkevikite and the magnesium-rich members of the hastingsite group are found in diorite, essexite and related calcium-rich rocks.

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