igneous
Dalmatian Stone and Lapis Lazuli
Dalmatian Stone (Felsic Igneous Rock) with Lapis Lazuli
Hardness: 5.5-7 on Mohs scale; Color: Off-white/cream with distinctive black spots (tourmaline/arfvedsonite) alternating with deep royal blue beads; Luster: Vitreous to dull; Structure: Polished spherical beads.
- Hardness
- 5
- Luster
- Vitreous to dull
Identified More igneous →
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Physical properties
Hardness: 5.5-7 on Mohs scale; Color: Off-white/cream with distinctive black spots (tourmaline/arfvedsonite) alternating with deep royal blue beads; Luster: Vitreous to dull; Structure: Polished spherical beads.
Formation & geological history
Dalmatian Stone is a microcrystalline igneous rock composed mainly of quartz, feldspars, and amphiboles, primarily mined in Chihuahua, Mexico.
Uses & applications
Used in gemstone jewelry, fashion accessories, bead bracelets, and ornamental carvings.
Geological facts
Often incorrectly referred to as 'Dalmatian Jasper', Dalmatian Stone is actually an igneous rock, not a true chalcedony/jasper. The black spots are black tourmaline or arfvedsonite inclusions.
Field identification & locations
Identified by its spots resembling a Dalmatian dog's coat pattern. Popular in beaded jewelry alongside other complementary gemstones like lapis lazuli or lapis-dyed stones.
