Image: <bdi><a href="https://www.wikidata.org/wiki/Q56247090" class="extiw" title="d:Q56247090"><span title="mineral collector and dealer">Robert M. Lavinsky</span></a></bdi> (CC BY-SA 3.0)
cubiccommonSilicates
Agate
SiO2
This specimen is a fire agate, displaying rich brown and orange hues with iridescent flashes of green, red, and gold, characteristic of its botryoidal growth and thin layers.
Agate Physical Properties
Mohs Hardness
7Crystal System
cubicLuster
vitreousStreak Color
WhiteCleavage
NoneFracture
ConchoidalSpecific Gravity
2.65Colors
brown, orange, red, green, iridescentTransparency
Translucent to opaqueType Locality
Aguascalientes, MexicoMineral Group
SilicatesUses
jewelry, ornamental objects, collector's specimensAssociated Minerals
quartz, calcite, zeolitesRarity
commonGeological Context
Agate forms in cavities of volcanic rocks, such as basalt, where silica-rich groundwater deposits successive layers of chalcedony, often creating concentric bands. Fire agate specifically forms in hydrothermal veins in volcanic regions.
