mineral
Quartz Geode Fragment
Silicon Dioxide (SiO2)
Hardness of 7 on the Mohs scale, white to translucent color, vitreous luster, hexagonal crystal system, conchoidal fracture with no true cleavage, specific gravity of 2.65
Identified More mineral →
Explore Quartz Geode Fragment in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness of 7 on the Mohs scale, white to translucent color, vitreous luster, hexagonal crystal system, conchoidal fracture with no true cleavage, specific gravity of 2.65
Formation & geological history
Formed through the deposition of silica-rich groundwater inside gas cavities or nodules in sedimentary or volcanic rocks over millions of years
Uses & applications
Used in mineral collections, ornamental display, and metaphysical practices
Geological facts
Geodes start as hollow bubbles in rock, where mineral-rich water slowly precipitates microscopic quartz crystals along the inner walls over vast geologic timescales
Field identification & locations
Easily identified by its sparkling crystalline interior contrasting with a rough, nodular outer rind; commonly found in limestone formations or volcanic deposits worldwide
More like this
Other mineral specimens
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Soil with Mineral Detritus and Quartz Fragments
Regolith / Silicate Mineral Aggregate
sedimentary
Limonite / Goethite (Iron Ore Mineral nodule)
FeO(OH)·nH2O / FeO(OH)
mineral
Septarian Pebble
Septarian nodule / Concretion
sedimentary
Potassium Feldspar (Orthoclase)
Orthoclase (KAlSi3O8)
mineral
Schist
Schist
Metamorphic