igneous
Purple Dyed Dalmatian Stone
Dyed Peralkaline Trachyte
Hardness: 5.5-7 (Mohs scale), Color: Artificially dyed purple base with natural black spots, Luster: Vitreous when polished, Crystal structure: Microcrystalline, Cleavage: None visible in tumbled state
- Hardness
- 5
Identified More igneous →
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Physical properties
Hardness: 5.5-7 (Mohs scale), Color: Artificially dyed purple base with natural black spots, Luster: Vitreous when polished, Crystal structure: Microcrystalline, Cleavage: None visible in tumbled state
Formation & geological history
Formed from igneous activity where volcanic rock (trachyte) contains inclusions of arfvedsonite. This specimen has been tumbled and treated with translucent purple dye to alter its natural creamy-white base color. Found primarily in Chihuahua, Mexico.
Uses & applications
Commonly used for decorative beads, tumbled pocket stones, metaphysical healing practices, and inexpensive costume jewelry.
Geological facts
While frequently called 'Dalmatian Jasper', it is actually an igneous rock (trachyte) rather than a true sedimentary jasper. The black spots are inclusions of the mineral arfvedsonite.
Field identification & locations
Identified by the distinct 'spotted' appearance resembling a Dalmatian dog. Natural specimens are white/cream; purple variations are always human-altered. It responds to streak tests and visual inspection for dye concentration in tiny surface cracks.
