mineral
Yellow Agate
Silicon Dioxide (SiO2)
Hardness: 6.5-7 Mohs; Color: Honey-yellow, translucent gold; Luster: Waxy to vitreous; Crystal structure: Hexagonal (microcrystalline); Cleavage: None; SG: 2.58-2.64
- Hardness
- 6
- Color
- Honey-yellow, translucent gold
- Luster
- Waxy to vitreous
Identified More mineral →
Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness: 6.5-7 Mohs; Color: Honey-yellow, translucent gold; Luster: Waxy to vitreous; Crystal structure: Hexagonal (microcrystalline); Cleavage: None; SG: 2.58-2.64
Formation & geological history
Formed from the deposition of silica from groundwater in the cavities of igneous rocks such as basalt or andesite, often in volcanic environments.
Uses & applications
Used primarily in lapidary arts, jewelry (cabochons, beads), and as a decorative or healing stone in spiritual practices.
Geological facts
Agate is a variety of chalcedony. The banding is caused by the rhythmic crystallization of silica during formation. Yellow varieties often get their color from iron inclusions.
Field identification & locations
Identify by its waxy luster, translucency, and conchoidal fracture. Commonly found in riverbeds, volcanic gravels, and agate-rich areas like Brazil, India, and the USA.
More like this
Other mineral specimens
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Nephrite Jade
Nephrite
Mineral/Rock
Banded Gneiss (River Rock/Pebble)
Gneiss (specifically a banded variety often found as a river rock)
Metamorphic Rock
![Green Apatite on Albite (Fluorapatite [Ca5(PO4)3F] on Albite [Na(AlSi3O8)]) — mineral](https://media.rockidentification.com/2391a63f-fb20-47d5-af9a-2035851eb32e-thumbnail.jpg)
Green Apatite on Albite
Fluorapatite [Ca5(PO4)3F] on Albite [Na(AlSi3O8)]
mineral
Epidote
Epidote - Ca2(Al2,Fe3+)3(SiO4)3(OH)
mineral