Jasper (specifically Oolitic or Brecciated Jasper)
Silicon Dioxide (SiO₂)
sedimentary
Category
Mineral (Specifically A Variety Of Chalcedony, Which Is Microcrystalline Quartz)
Browse mineral (specifically a variety of chalcedony, which is microcrystalline quartz) specimens identified by the Rock Identifier community.
Learn about Mineral (Specifically A Variety Of Chalcedony, Which Is Microcrystalline Quartz) in the encyclopedia
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Fossilized Coral
Hexagonaria (Rugose and Tabulate coral fossils)
fossil
Ocean Jasper
Silicon Dioxide (SiO2) - Orbicular Jasper / Chalcedony
mineral
Quartz (Milky or Cloudy)
Silicon Dioxide (SiO2)
mineral
Tumbled jasper pebble
Jasper, microcrystalline quartz (SiO₂) with iron-oxide impurities
mineral
Tumbled reddish-brown stone, likely jasper
Jasper (microcrystalline quartz, SiO₂), possibly red jasper or jasper-rich chert
mineral
Yellow Jasper
Silicon Dioxide (SiO2) with hydrated iron oxide impurities (Goethite)
Mineral-based Sedimentary/Silica
Blue Lace Agate
Silicon Dioxide (SiO2)
mineral
Jasper
Silicon dioxide (SiO2)
mineral
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Red Jasper (beads)
Silicon Dioxide (SiO2) with iron inclusions
Sedimentary Rock
Bumblebee Jasper
Fossiliferous Volcanic Rock (composed of Calcium Carbonate, Manganese Oxides, and Arsenic Sulfides)
igneous
Chalcedony with Druzy Quartz Geode
Silicon Dioxide (SiO2)
mineral
Tumbled carnelian/chalcedony
Chalcedony (microcrystalline quartz), SiO₂; reddish color from iron oxides
mineral
Blue lace agate (likely dyed or color-enhanced)
Microcrystalline quartz (chalcedony), SiO₂
mineral
Banded Agate
Silicon Dioxide (SiO2) - Chalcedony Variety
mineral
Chert / Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Chrysocolla in Quartz
Chrysocolla (Cu,Al)2H2Si2O5(OH)4·nH2O in Quartz (SiO2)
gemstone
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Black Onyx
Silicon Dioxide (SiO2)
mineral
Red Jasper (in Quartz/Chalcedony)
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Orange Quartz with Hematite inclusions
Quartz (SiO2) with Hematite (Fe2O3) inclusions
Mineral
Tumbled brown chalcedony (likely jasper or agate)
Microcrystalline quartz, SiO₂; chalcedony with iron-oxide staining
mineral
Tourmalinated Quartz
Silicon dioxide (SiO2) with inclusions of Schorl (NaFe2+3Al6(Si6O18)(BO3)3(OH)3OH)
mineral
Banded Jasper
Silicate Mineral (Microcrystalline Quartz / SiO2)
sedimentary
Dragon Blood Jasper
SiO2
mineral
Chert (Jasper/Agate variety)
Microcrystalline Quartz (SiO2)
sedimentary
Jasper
Silicon dioxide (SiO2)
sedimentary
Quartz (chalcedony variety) or Limestone with Quartz Veins
SiO2 (for Quartz/Chalcedony); CaCO3 (for Limestone)
Mineral or Sedimentary Rock (with mineral inclusions)
Agate (Polished Sphere)
Silicon Dioxide (SiO2)
mineral
Ocean Jasper
Spherulitic Chalcedony (SiO2)
mineral
Orange Quartz (Ferruginous Quartz)
Silicon Dioxide (SiO2) with Iron Oxide inclusions
mineral
Blue Chalcedony
Silicon Dioxide (SiO2)
gemstone
Jasper and Mixed River Pebbles
Microcrystalline Quartz (Chalcedony / Jasper)
sedimentary
Blue Chalcedony
Silicon Dioxide (SiO2)
mineral
Carnelian
Chalcedony (SiO2)
mineral
Jasper
Silicon dioxide (SiO2)
sedimentary
Tumbled yellow-orange chalcedony (likely carnelian or honey agate)
Microcrystalline quartz, SiO₂; orange coloration commonly from iron oxides
mineral
Ocean Jasper (Orbicular Jasper)
Silicon Dioxide (SiO2) with iron and other mineral inclusions
mineral
Red Jasper
Microcrystalline Quartz (Chalcedony), SiO2 with iron oxide inclusions
sedimentary
Red Jasper
Silicon dioxide with hematite impurities (SiO2 + Fe2O3)
mineral
Red Jasper
Silicon Dioxide (SiO2) with Hematite (Fe2O3) inclusions
sedimentary