mineral
Polished Red Quartz (or Carnelian / Red Jasper)
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness 7 on Mohs scale; reddish-pink to brownish-red color; vitreous to waxy luster; trigonal crystal system; Conchoidal fracture; specific gravity approximately 2.65.
Identified More mineral →
Explore Polished Red Quartz (or Carnelian / Red Jasper) in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness 7 on Mohs scale; reddish-pink to brownish-red color; vitreous to waxy luster; trigonal crystal system; Conchoidal fracture; specific gravity approximately 2.65.
Formation & geological history
Formed in hydrothermal veins, volcanic cavities, or low-grade metamorphic environments through silica precipitation from fluids.
Uses & applications
Popular for lapidary work, tumbled stones, jewelry beads, metaphysical uses, and decorative crystal collections.
Geological facts
Red coloration in quartz materials is typically caused by fine inclusions of hematite or other iron oxides during formation.
Field identification & locations
Identify by hardness (scratches glass readily), smooth tumbled texture, waxy to glassy luster, and warm reddish coloration. Commonly found in Brazil, Madagascar, India, and North America.
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
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Pegmatite with Tourmaline and Quartz
Igneous Pegmatite
igneous
Granite
Granite (Phaneritic intrusive igneous rock)
igneous
Septarian Pebble
Septarian nodule / Concretion
sedimentary