mineral
Amethyst Agate
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, purple and grey banding, vitreous luster, hexagonal crystal system, no cleavage, specific gravity of 2.65.
Identified More mineral →
Explore Amethyst Agate 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, purple and grey banding, vitreous luster, hexagonal crystal system, no cleavage, specific gravity of 2.65.
Formation & geological history
Formed via hydrothermal solutions depositing silica within gas cavities in volcanic rocks over millions of years.
Uses & applications
Widely used in jewelry, ornamental carvings, crystal healing, and as a popular collector specimen.
Geological facts
Combines the banded microcrystalline structure of agate with macrocrystalline purple amethyst quartz tips.
Field identification & locations
Identified by its distinctive purple quartz crystals resting on banded chalcedony; commonly sourced from Brazil and Uruguay.
