gemstone
Carnelian Agate Beads
Chalcedony (Microcrystalline Quartz) - SiO2
AI-generated identification · may be incorrectHardness of 6.5-7 on the Mohs scale. Orange to red-brown color due to iron oxide impurities. Waxy luster and cryptocrystalline structure.
Identified More gemstone →
Explore Carnelian Agate Beads in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness of 6.5-7 on the Mohs scale. Orange to red-brown color due to iron oxide impurities. Waxy luster and cryptocrystalline structure.
Formation & geological history
Formed from silica-rich fluids precipitating in cavities of igneous rocks, particularly basalts. The color can be enhanced by heat treatment.
Uses & applications
Commonly used in jewelry making, particularly as beads, cabochons, and carved intaglios. Historically used for seals and amulets.
Geological facts
Carnelian was widely used in ancient Rome for engraved signet rings because hot wax does not stick to it.
Field identification & locations
Identified by its translucent to semi-opaque orange-red color and waxy luster. Commonly found in Brazil, India, and Uruguay.
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
Amber
Succinite (Organic Gemstone)
mineral
Diamond and Gold Jewelry
Carbon (Diamond) / Au (Gold)
gemstone
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
sedimentary
Cubic Zirconia (simulant) or Diamond
ZrO2 (Cubic Zirconia) or C (Diamond)
gemstone