Overview

leucite


Show Summary Details

Quick Reference

An important feldspathoid mineral KAlSi2O6; sp. gr. 2.5; hardness 5.5–6.0; tetragonal; normally white or grey; vitreous lustre; crystals form very characteristic tetragonal trioctohedra; cleavage imperfect {110}; occurs in potassium-rich rocks which may be silica deficient, such as leucite basanites, leucite tephrites, lamproites, and leucitophyres or leucitites.

Subjects: Earth Sciences and Geography.


Reference entries

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content.