Brecciated Jasper
Microcrystalline Quartz (SiO2)
Category
Browse sedimentary (jasper), mineral (aquamarine) specimens identified by the Rock Identifier community.
Brecciated Jasper
Microcrystalline Quartz (SiO2)
Yellow jasper or iron-stained chert
Microcrystalline quartz (SiO₂), commonly colored by goethite/limonite and other iron oxides
Tumbled jasper or chert
Microcrystalline quartz (SiO₂), likely iron-stained jasper/chalcedony
Red Jasper
Red Jasper (SiO2 with Fe2O3 inclusions)
Red Jasper (River Pebble)
Silicon Dioxide (SiO2) with iron oxide inclusions
Yellow Jasper
Silicon Dioxide (SiO2) with goethite or iron oxide inclusions
Dalmatian jasper
Orbicular quartz-rich rhyolite, commonly marketed as Dalmatian jasper
Red Jasper
Silicon Dioxide (SiO2) with Iron inclusions
Yellow Jasper
Microcrystalline Quartz (SiO2)
Jasper (Yellow Jasper)
Silicon Dioxide (SiO2) with iron inclusions
Mixed Chalcedony and Jasper Bracelet (possibly 'Ocean Jasper' or similar banded variety for brown beads, and blue/grey Chalcedony for the translucent beads)
Chalcedony (SiO2), Jasper (SiO2 with impurities)
Jasper
Silicon dioxide (SiO2) with impurities
Polished brown jasper
Jasper, an opaque microcrystalline variety of quartz (SiO₂), likely iron-rich brecciated or orbicular jasper
Jasper
Jasper (a variety of Chalcedony, SiO2)
Banded jasper (likely mookaite or brecciated jasper)
Microcrystalline quartz/chalcedony (SiO₂) with iron-oxide and clay inclusions
Yellow Jasper (Limonite-stained Chert)
Silicon Dioxide (SiO2) with Limonite/Goethite inclusions
Red Jasper
Jasper (a cryptocrystalline variety of Quartz, SiO₂)
Jasper
Silicon dioxide (SiO2) with iron impurities
Jasper
Silicon Dioxide (SiO2)
Jasper
Silicon dioxide (SiO2)
Jasper
Microcrystalline Quartz (SiO2)
Picture Jasper
SiO2
Polished jasper pebble
Jasper, microcrystalline quartz (SiO₂) with iron-oxide and clay-mineral impurities
Jasper
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Banded Jasper
Silicon Dioxide (SiO2) with iron oxide and clay impurities
Tumbled orange chalcedony / jasper
Microcrystalline quartz, SiO₂, likely iron-stained chalcedony or quartz-rich jasper
Jasper
Silicon dioxide (SiO2) with impurities
Yellow Jasper
Silicon Dioxide (SiO2) with iron hydroxides (goethite)
Polished brecciated jasper
Microcrystalline quartz (SiO₂), commonly colored by iron oxides
Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Tumbled red jasper
Jasper, microcrystalline quartz (SiO₂) colored mainly by iron oxides
Yellow Jasper
Silicon Dioxide (SiO2) with iron hydroxides
Brown Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Jasper (Red Jasper)
Silicon Dioxide (SiO2) with iron oxide inclusions
Polished picture jasper slab
Silicified/lithified microcrystalline quartz (chalcedony), commonly with iron-oxide and clay-mineral bands
Educational Geologic Collection
Mixed Mineral and Rock Collection (Various compositions)
Dalmatian Stone (commonly called Dalmatian Jasper)
Peralkaline Rock (mixed Feldspar, Quartz, and Arfvedsonite)
Yellow Jasper (Mookaite style)
Silicon Dioxide (SiO2) with Goethite/Hematite inclusions
Blue chalcedony or blue quartz bead bracelet
Microcrystalline quartz, SiO₂ (chalcedony); possibly treated blue quartz
Polished brown jasper (likely brecciated or orbicular jasper)
Microcrystalline quartz/chalcedony, SiO₂, with iron-oxide and other mineral inclusions
Red jasper pebble
Jasper, an opaque microcrystalline variety of quartz (SiO₂), colored mainly by iron oxides
Jasper
Jasper (Silicon Dioxide, SiO2)