igneous
Dalmatian Jasper
Dalmatian Stone (Aplite with Arfvedsonite)
Hardness: 5.5-7 Mohs; Color: Pale grey, cream, or beige with black/brown spots; Luster: Vitreous/Dull; Structure: Fine-grained igneous; Specific Gravity: 2.6-2.7
- Hardness
- 5
- Color
- Pale grey, cream, or beige with black/brown spots
- Luster
- Vitreous/Dull
Identified More igneous →
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Physical properties
Hardness: 5.5-7 Mohs; Color: Pale grey, cream, or beige with black/brown spots; Luster: Vitreous/Dull; Structure: Fine-grained igneous; Specific Gravity: 2.6-2.7
Formation & geological history
Volcanic rock formed from cooling magma, primarily found in Chihuahua, Mexico. It is an igneous microcrystalline quartz with dikes of sodium amphiboles.
Uses & applications
Primarily used for decorative carvings, jewelry beads, cabochons, and metaphysical/holistic healing practices.
Geological facts
Despite being called 'Jasper' by trade, it is technically an igneous stone (Aplite) rather than a sedimentary jasper. The black spots are Arfvedsonite, not tourmaline as often misidentified.
Field identification & locations
Identified by its distinctive black spots on a cream background reminiscent of a Dalmatian dog. Found almost exclusively in Mexico. Popular for its durability in jewelry.
