metamorphic

Lazulite Quartzite

Quartzite with Lazulite (SiO2 with (Mg,Fe)Al2(PO4)2(OH)2)

AI-generated identification · may be incorrect

Hardness of 7 for quartz, vitreous to dull luster, color ranges from white and grey to distinct lavender or blue streaks from lazulite, massive crystal structure, uneven fracture.

Identified August 5, 2026More metamorphic →

Explore Lazulite Quartzite in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

App Store Google Play

Physical properties

Hardness of 7 for quartz, vitreous to dull luster, color ranges from white and grey to distinct lavender or blue streaks from lazulite, massive crystal structure, uneven fracture.

Formation & geological history

Formed through the regional or contact metamorphism of quartz-rich sandstone under high temperature and pressure, with the introduction of phosphate-rich hydrothermal fluids containing magnesium and iron to form lazulite.

Uses & applications

Used primarily as a decorative stone, lapidary material for cabochons, and as a prized specimen for mineral and rock collectors.

Geological facts

Lazulite-bearing quartzites are relatively rare geological formations, often sought after for their striking pastel blue or purple hues which are naturally occurring and distinct from dyed stones.

Field identification & locations

Identify in the field by its hard quartz matrix combined with patches of vibrant lavender-blue minerals that do not effervesce with acid. Found in metamorphic terrains worldwide.