gemstone
Carnelian Agate
Silicon Dioxide (Chalcedony variety)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, vibrant red-orange to brown-red color, waxy to vitreous luster, and microcrystalline crystal structure.
Identified More gemstone →
Explore Carnelian Agate in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness of 6.5 to 7 on the Mohs scale, vibrant red-orange to brown-red color, waxy to vitreous luster, and microcrystalline crystal structure.
Formation & geological history
Formed through the deposition of silica from groundwater in cavities of igneous and sedimentary rocks over millions of years.
Uses & applications
Widely used in jewelry, ornamental carvings, and lapidary art.
Geological facts
Carnelian was prized in ancient civilizations like Egypt and Rome for use in signet rings and amulets.
Field identification & locations
Identified by its translucent orange-red banding and conchoidal fracture; commonly found in Brazil, India, and the United States.
More like this
Other gemstone specimens
Ammolite
Ammolite (Biogenic Aragonite with trace elements; fossils of Placenticeras meeki and Placenticeras intercalare)
mineral
Gemstone Ring
N/A - Set piece of jewelry, likely Amethyst or Garnet with Diamond or CZ
gemstone
Topaz
Al2SiO4(F,OH)2
mineral
Amber
Succinite (Organic Gemstone)
mineral
Diamond and Gold Jewelry
Carbon (Diamond) / Au (Gold)
gemstone
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
sedimentary