Leucocratic rock

Description

Igneous rock containing 65 to 95% of minerals felsic minerals, such as feldspathoids (nepheline and leucite), muscovite, and corundum. Because felsic minerals lack iron and magnesium, they are generally light in color and consequently are referred to as leucocratic.

Synonyms and Related Terms

rocha leucocrtica (Port.)

Authority

• Submitted information, Submitted information Comment: Jos Delgado Rodrigues, LNEC, 2009

• Encyclopedia Britannica, Encyclopedia Britannica, http://www.britannica.com Comment: Leucocratic rock