Dalmatian Jasper
Microgranular Quartz var. Dalmatian Jasper · Decorative Stone / Semi-Precious Gemstone
Crystal System
Trigonal (Microcrystalline quartz matrix)
Mineral Group
Silicates (Tectosilicates)
Chemical Formula
SiO2 with inclusions of tourmaline and arfvedsonite
Formation Process
Igneous and hydrothermal formation where silica-rich fluids permeate existing host rocks, incorporating dark amphibole or tourmaline minerals to create the spotted pattern.
About This Crystal
A polished tumbled stone featuring a creamy off-white to yellowish-beige base color prominently speckled with distinct, dark black to brownish spots and patches, giving it a playful, spotted appearance reminiscent of a Dalmatian dog.
Physical Characteristics
Creamy beige, white, and black body color; white streak; massive or microcrystalline habit; no distinct cleavage; conchoidal fracture; specific gravity around 2.65; brittle tenacity; opaque transparency with a waxy to vitreous luster when polished.
Optical Properties
Aggregated microcrystalline structure resulting in a general lack of distinct individual optical phenomena; doubly refractive in microscopic crystalline units but appears isotropic as an aggregate; no pleochroism.
Hardness & Durability
Origin Region
Primarily sourced from Chihuahua, Mexico, and various parts of Africa; typically found in igneous or hydrothermal environments.
Hardness & Durability
Mohs hardness of 6.5 to 7; good toughness and durability for standard jewelry wear, though care should be taken with impact.
Care & Maintenance
Clean with warm soapy water and a soft cloth; avoid harsh chemical cleaners and ultrasonic cleaners; store separately to prevent scratching softer stones.
Rarity & Value
Common; widely available and affordable, valued primarily for decorative and lapidary purposes without common treatments or enhancements.
Special Characteristics
Distinctive natural contrasting spotted pattern formed by dark mineral inclusions within a lighter quartz or feldspar-rich matrix.
Lore & History
Popular in modern crystal healing and new age practices as a stone believed to promote joy, grounding, loyalty, and a playful attitude, often associated with the root chakra. These are traditional and symbolic beliefs without scientific backing.