Lavender Chalcedony
Quartz var. Chalcedony · Semi-Precious Gemstone and Decorative Stone
Crystal System
Trigonal, microcrystalline habit forming in massive, botryoidal, or nodular forms
Mineral Group
Silicates (Subgroup: Tectosilicates)
Chemical Formula
SiO2
Formation Process
Hydrothermal and low-temperature sedimentary processes, precipitating from silica-rich aqueous solutions in cavities and fractures
About This Crystal
An opaque to translucent cabochon-cut gemstone set in an ornate gold-toned ring, displaying a soft, uniform pastel lavender or pale purplish-pink color with a smooth waxy to vitreous luster
Physical Characteristics
Color ranges from pale lilac to soft lavender caused by trace amounts of manganese or other transition elements; white streak; conchoidal fracture; no distinct cleavage; specific gravity around 2.60 to 2.65; brittle tenacity
Optical Properties
Aggregate refractive index around 1.530 to 1.540; doubly refractive as a microcrystalline aggregate; inert to weak fluorescence under UV light; no significant pleochroism or dispersion
Hardness & Durability
Origin Region
Found globally with significant deposits in Madagascar, USA, Brazil, and India; typically forms in volcanic and sedimentary environments
Hardness & Durability
Mohs hardness of 6.5 to 7, making it durable and suitable for everyday jewelry wear including rings, provided it is protected from harsh impacts
Care & Maintenance
Clean with warm soapy water and a soft brush; avoid harsh chemicals, ultrasonic cleaners, and prolonged exposure to direct sunlight to prevent potential color fading
Rarity & Value
Common to uncommon depending on the saturation and uniformity of the lavender hue; affordable and widely accessible, rarely subjected to treatments other than basic cutting and polishing
Special Characteristics
Microcrystalline structure consisting of sub-microscopic quartz fibers; smooth, soothing pastel coloration with gentle translucency
Lore & History
Often associated with emotional healing, inner peace, and soothing stress in modern crystal lore; linked traditionally to the third eye and crown chakras, though these are cultural beliefs without scientific validation