mineral

Honey/brown agate (chalcedony)

Microcrystalline quartz, SiO₂; likely translucent agate or chalcedony

AI-generated identification · may be incorrect

Hardness about 6.5–7 Mohs; waxy to vitreous luster, translucent honey-brown color, cryptocrystalline quartz structure, and no obvious cleavage. The broken or polished-looking surface and conchoidal fracture are typical of chalcedony.

Identified August 11, 2026More mineral →

Explore Honey/brown agate (chalcedony) in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

App Store Google Play

Physical properties

Formation & geological history

Forms when silica-rich groundwater fills cavities and fractures in volcanic rocks, often developing concentric banding or iron-oxide coloration. Individual specimens may range from Paleozoic to Cenozoic in age depending on locality.

Uses & applications

Used for cabochons, beads, carvings, ornaments, and lapidary specimens; massive material is also used decoratively. Common pieces generally have modest value unless strongly banded, vividly colored, or finely polished.

Geological facts

Agate is a variety of chalcedony distinguished by visible banding or patterned coloration; evenly translucent brown material may be called carnelian-like chalcedony. Iron oxides commonly create the honey, orange, and reddish tones.

Field identification & locations

Common localities include Brazil, Uruguay, Mexico, India, Madagascar, and the western United States. Test with a steel blade only cautiously; it should resist scratching, show a glassy/waxy fracture, and not fizz in dilute acid.