sedimentary
Red Veined Jasper
Silicon Dioxide with Hematite inclusions (SiO2)
Hardness: 6.5-7 (Mohs); Color: Cream or tan base with deep red spider-web-like veins; Luster: Vitreous to waxy after polishing; Structure: Microcrystalline quartz.
- Hardness
- 6
- Color
- Cream or tan base with deep red spider-web-like veins
- Luster
- Vitreous to waxy after polishing
Identified More sedimentary →
Explore Red Veined 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); Color: Cream or tan base with deep red spider-web-like veins; Luster: Vitreous to waxy after polishing; Structure: Microcrystalline quartz.
Formation & geological history
Formed through the deposition of silica-rich water into volcanic ash or fine sediment, with the red veins caused by the presence of iron oxides (hematite) filling fractures within the stone.
Uses & applications
Primarily used for lapidary work including tumbled stones, jewelry beads, cabochons, and decorative ornamental carvings.
Geological facts
Also known as Spiderweb Jasper. In ancient cultures, jasper was often considered a stone of protection and was frequently used to create seals and amulets.
Field identification & locations
Identify by its opaque white or beige matrix and the distinct dendritic or web-like red patterns. It is frequently found in locations with volcanic-sedimentary history like South Africa, Brazil, and the USA.
More like this
Other sedimentary specimens
Sandstone or Siltstone
Arenite (if sandstone)
Sedimentary
Brown Sandstone (River Rock)
Arenite
sedimentary
Mudstone
Argillite / Siliciclastic sedimentary rock
sedimentary
Cone-in-cone structure (Limestone)
Cone-in-cone structure (Secondary Sedimentary Structure)
sedimentary
Sandstone
Arenite (primarily SiO2)
sedimentary
Sandstone Grain
Clastic Sedimentary Rock Grain (SiO2 dominated)
sedimentary