gemstone
Yellow Agate
SiO2 (Quartz variety)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, vibrant yellow color, waxy to vitreous luster, and microcrystalline structure.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, vibrant yellow color, waxy to vitreous luster, and microcrystalline structure.
Formation & geological history
Formed in the cavities of volcanic and metamorphic rocks through the deposition of silica-rich groundwater over millions of years.
Uses & applications
Widely used in making polished beads for jewelry, ornamental carvings, and decorative collectibles.
Geological facts
Agate is an ancient healing stone, and yellow varieties are often artificially enhanced or dyed from natural grey stones to achieve vibrant hues.
Field identification & locations
Easily identified by its smooth, polished spherical bead form and vitreous luster. Common worldwide, particularly in Brazil and India.
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