Carnelian
Chalcedony var. Carnelian · Semi-Precious Gemstone
Crystal System
Trigonal, microcrystalline quartz with cryptocrystalline habit
Mineral Group
Silicates (Tectosilicates)
Chemical Formula
SiO2
Formation Process
Hydrothermal and low-temperature sedimentary environments, often filling cavities in volcanic rocks
About This Crystal
The bracelet consists of polished, spherical beads ranging from translucent pale peach to vibrant reddish-orange, characteristic of carnelian, interspersed with clear quartz beads, metallic spacers, and a decorative charm.
Physical Characteristics
Colors range from orange to red-orange; white streak; lacks visible cleavage; conchoidal fracture; specific gravity around 2.60 to 2.65; brittle tenacity; usually inert under UV light.
Optical Properties
Singly to doubly refractive with a microcrystalline aggregate structure; vitreous to waxy luster; no significant pleochroism.
Hardness & Durability
Origin Region
India, Brazil, Madagascar, Uruguay, and the United States
Hardness & Durability
Mohs hardness of 6.5 to 7; good toughness due to interlocking microcrystalline structure; suitable for daily jewelry wear with standard care.
Care & Maintenance
Clean with warm soapy water and a soft brush; avoid harsh chemicals, ultrasonic cleaners, and prolonged exposure to direct sunlight to prevent fading.
Rarity & Value
Common and widely available; value depends primarily on color saturation, evenness, and size; typically very affordable.
Special Characteristics
Often exhibits cloudy or banded color zoning typical of chalcedony varieties.
Lore & History
Historically used in ancient Rome, Egypt, and Greece for signet rings and amulets; traditionally associated with courage, vitality, and motivation in crystal healing practices.