mineral
Yellow Jasper
Chalcedony (SiO2 with iron oxide inclusions)
Hardness: 6.5-7 (Mohs); Color: Mustard yellow to yellow-brown; Luster: Vitreous to waxy; Structure: Cryptocrystalline; Cleavage: None; SG: 2.6-2.9
- Hardness
- 6
- Color
- Mustard yellow to yellow-brown
- Luster
- Vitreous to waxy
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Physical properties
Hardness: 6.5-7 (Mohs); Color: Mustard yellow to yellow-brown; Luster: Vitreous to waxy; Structure: Cryptocrystalline; Cleavage: None; SG: 2.6-2.9
Formation & geological history
Formed via the accumulation of silica from volcanic ash or sediment, often in hydrothermal environments or sedimentary basins, where iron oxides provide the yellow hue.
Uses & applications
Used primarily for lapidary work, jewelry (cabochons), ornamental carvings, and as a healing stone in metaphysical communities.
Geological facts
Yellow Jasper was historically used as a talisman for protection. It is a dense, opaque variety of quartz that gets its color from goethite or limonite.
Field identification & locations
Identified by its opacity (unlike citrine) and waxy texture. Commonly found in riverbeds or arid regions in India, Madagascar, and the Southwestern USA.
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metamorphic
Gypsum (variety Selenite or Alabaster)
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Mineral
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Mineral/Rock
Banded Gneiss (River Rock/Pebble)
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