sedimentary
Jasper with Quartz Vein
Microcrystalline quartz (SiO2) with quartz infill
Hardness of 6.5 to 7 on the Mohs scale, green and brownish color with white/translucent quartz crystal pocket, waxy to vitreous luster, cryptocrystalline structure, conchoidal fracture, specific gravity around 2.65
Identified More sedimentary →
Explore Jasper with Quartz Vein in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness of 6.5 to 7 on the Mohs scale, green and brownish color with white/translucent quartz crystal pocket, waxy to vitreous luster, cryptocrystalline structure, conchoidal fracture, specific gravity around 2.65
Formation & geological history
Formed through the deposition of silica-rich fluids in fractures and cavities of preexisting rock, typically during hydrothermal activity or low-temperature diagenesis over millions of years
Uses & applications
Commonly collected as a lapidary specimen, used for cabochons, decorative carvings, and jewelry making
Geological facts
Jasper is an opaque variety of chalcedony and has been used since ancient times for seals, signet rings, and ornamentation due to its toughness and ability to take a fine polish
Field identification & locations
Easily identified by its hardness, smooth water-worn surface in river stones, and distinct contrasting quartz-filled vugs or veins; found globally in stream beds, gravel bars, and ancient marine deposits
More like this
Other sedimentary specimens
Sandstone or Siltstone
Arenite (if sandstone)
Sedimentary
Fossiliferous Concretion
Septarian Concretion containing Brachiopods/Crinoids
fossil
Quartz pebble
Silicon dioxide (SiO2)
sedimentary
Generic Pebble / Rock Fragment
Lithic fragment / Weathered rock
sedimentary
Banded Siltstone / Mudstone Pebble
Siltstone / Argillite
sedimentary
Sedimentary Sandstone
Arenite (Sedimentary Rock)
sedimentary