mineral
Dumortierite Quartz
Dumortierite in Quartz (SiO2 with Al7BO3(SiO4)3O3)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, vibrant blue to violet color with vitreous luster, and a trigonal crystal system.
Identified More mineral →
Explore Dumortierite Quartz in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness of 7 on the Mohs scale, vibrant blue to violet color with vitreous luster, and a trigonal crystal system.
Formation & geological history
Formed via hydrothermal processes and regional metamorphism in aluminum-rich rocks.
Uses & applications
Used primarily for lapidary work, cabochons, beads, and as an ornamental gemstone.
Geological facts
Dumortierite inclusions give the host quartz its distinct denim-blue or indigo coloration.
Field identification & locations
Identify by its rich blue color and inclusion patterns within a transparent to translucent quartz matrix; found in Brazil, Namibia, and the USA.
More like this
Other mineral specimens
Gneiss or Schist
Gneiss or Mica Schist with Garnet
Metamorphic
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Tumbled granite
Granite, a coarse-grained felsic intrusive igneous rock
igneous
Pegmatite with Tourmaline and Quartz
Igneous Pegmatite
igneous
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Granite
Granite (Phaneritic intrusive igneous rock)
igneous