sedimentary
Riverstone Jasper
Silicon Dioxide (SiO2) with impurities
AI-generated identification · may be incorrectHardness: 6.5-7.0 (Mohs scale); Color: Earthy brown/green; Luster: Dull to waxy; Structure: Cryptocrystalline; Cleavage: None; Specific Gravity: 2.6-2.9
- Hardness
- 6
- Color
- Earthy brown/green
- Luster
- Dull to waxy
Identified More sedimentary →
Explore Riverstone Jasper in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness: 6.5-7.0 (Mohs scale); Color: Earthy brown/green; Luster: Dull to waxy; Structure: Cryptocrystalline; Cleavage: None; Specific Gravity: 2.6-2.9
Formation & geological history
Formed from silica-rich fluids that permeated through sedimentary or volcanic environments, later shaped and smoothed into a rounded cobble by the abrasive action of water in a river or stream bed.
Uses & applications
Commonly used for lapidary work, decorative landscaping, aquarium stones, and as a pocket stone for grounding in metaphysical practices.
Geological facts
Jasper has been used as a tool-making material by ancient civilizations due to its durability and conchoidal fracture pattern. This specific specimen shows signs of natural stream-polishing.
Field identification & locations
Identify by its density, lack of visible crystals (cryptocrystalline), and smooth, water-worn exterior. Commonly found in riverbeds and glacial deposits worldwide.
More like this
Other sedimentary specimens
Fossiliferous Sedimentary Rock
Sedimentary limestone with invertebrate fossil imprint
fossil
Sandstone or Siltstone
Arenite (if sandstone)
Sedimentary
Sandstone
Arenite
sedimentary
Quartz pebble
Silicon dioxide (SiO2)
sedimentary
Shale
Shale (clastic sedimentary rock)
sedimentary
Shale (or Mudstone/Siltstone)
Sedimentary Mudrock (SiO2, Al2O3 base with clay minerals)
sedimentary