sedimentary
Jasper with Purple Fluorite or Chalcedony
Silicon Dioxide (SiO2) with mineral inclusions
Hardness of 6.5 to 7 on the Mohs scale, waxy to vitreous luster, opaque to translucent, conchoidal fracture, specific gravity around 2.6 to 2.7.
Identified More sedimentary →
Explore Jasper with Purple Fluorite or Chalcedony 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, waxy to vitreous luster, opaque to translucent, conchoidal fracture, specific gravity around 2.6 to 2.7.
Formation & geological history
Formed via hydrothermal precipitation or secondary deposition in sedimentary or volcanic rock cavities over millions of years.
Uses & applications
Used primarily in lapidary arts, ornamental carvings, polished specimens, and mineral collections.
Geological facts
Many beach pebbles show striking color banding and multicolored inclusions due to weathering and interaction with surrounding mineral-rich groundwater.
Field identification & locations
Commonly found in riverbeds, lake shores, and beaches where wave action and tumbling have naturally polished the stone.
More like this
Other sedimentary specimens
Sandstone or Siltstone
Arenite (if sandstone)
Sedimentary
Quartz pebble
Silicon dioxide (SiO2)
sedimentary
Fossiliferous Concretion
Septarian Concretion containing Brachiopods/Crinoids
fossil
Generic Pebble / Rock Fragment
Lithic fragment / Weathered rock
sedimentary
Sedimentary Sandstone
Arenite (Sedimentary Rock)
sedimentary
Banded Siltstone / Mudstone Pebble
Siltstone / Argillite
sedimentary