gemstone

Yellow Chalcedony (Yellow Agate)

Silicon Dioxide (SiO2)

Hardness: 6.5-7 on Mohs scale; Color: Honey yellow to translucent golden-yellow; Luster: Vitreous to waxy; Structure: Microcrystalline quartz (trigonal); Cleavage: None; Specific Gravity: 2.58-2.64.

Hardness: 6
Color: Honey yellow to translucent golden-yellow
Luster: Vitreous to waxy

Identified July 24, 2026More gemstone →

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Physical properties

Hardness: 6.5-7 on Mohs scale; Color: Honey yellow to translucent golden-yellow; Luster: Vitreous to waxy; Structure: Microcrystalline quartz (trigonal); Cleavage: None; Specific Gravity: 2.58-2.64.

Formation & geological history

Forms at relatively low temperatures through the deposition of silica-rich solutions in cavities, fractures, and geothermal veins within volcanic and sedimentary rocks. Popular in Northern India and the Himalayan regions (Gilgit-Baltistan/Ladakh area).

Uses & applications

Cut into cabochons for jewelry, ring settings, amulets, and ornamental carvings.

Geological facts

Yellow chalcedony, often traded locally in the region as a form of Aqeeq (Agate/Chalcedony), has been revered for thousands of years in Central and South Asia as a stone of good fortune, emotional balance, and physical vitality.

Field identification & locations

Identified by its translucent, waxy to vitreous appearance, absence of visible individual crystal grains, smooth cabochon polish, and characteristic warm honey-yellow hue.

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