gemstone
Yellow Agate
Chalcedony (SiO2)
AI-generated identification · may be incorrectHardness of 6.5-7 on the Mohs scale, yellow to golden-brown color, waxy to vitreous luster, microcrystalline quartz structure, conchoidal fracture.
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Physical properties
Hardness of 6.5-7 on the Mohs scale, yellow to golden-brown color, waxy to vitreous luster, microcrystalline quartz structure, conchoidal fracture.
Formation & geological history
Forms by the deposition of silica from groundwater in cavities of igneous and sedimentary rocks, often in concentric bands.
Uses & applications
Used primarily in jewelry, decorative carvings, beads, and as a popular tumbled stone for crystal healing and collecting.
Geological facts
Agate is one of the oldest known stones used in healing and amulets, with historical artifacts dating back to Babylonian times.
Field identification & locations
Identified by its waxy luster, smooth tumbled texture, and translucent yellow banding; commonly found worldwide in volcanic rock cavities.
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