sedimentary
Red Jasper
Jasper (Silicon Dioxide, SiO2)
AI-generated identification · may be incorrectHardness: 6.5-7 (Mohs scale); Color: Red, brown, yellow; Luster: Vitreous to dull; Crystal Structure: Trigonal (microcrystalline); Cleavage: None; Specific Gravity: 2.58-2.91
- Hardness
- 6
- Color
- Red, brown, yellow
- Luster
- Vitreous to dull
Identified More sedimentary →
Explore Red Jasper in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness: 6.5-7 (Mohs scale); Color: Red, brown, yellow; Luster: Vitreous to dull; Crystal Structure: Trigonal (microcrystalline); Cleavage: None; Specific Gravity: 2.58-2.91
Formation & geological history
Formed via the deposition of silica from water-bearing solution and often found in sedimentary rocks or as part of volcanic flows. The red color is typically due to iron inclusions.
Uses & applications
Used primarily for lapidary work, jewelry, ornamental carvings, and as a popular specimen for collectors.
Geological facts
Red Jasper is known as a stone of endurance; ancient Egyptians often wore it as amulets to provide protection and increase strength.
Field identification & locations
Identified by its opaque appearance, waxy luster when wet or polished, and unique red mottling. Commonly found in riverbeds and gravel pits globally.
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