Bumblebee Jasper (technically Bumblebee Stone)
Calcite, Aragonite, and Realgar/Orpiment mixture (SiO2 + CaCO3 + As2S3/As2S2)
sedimentary (volcanic)
Category
Sedimentary (Volcanic)
Browse sedimentary (volcanic) specimens identified by the Rock Identifier community.
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Quartz Geode
Crystalline Silicon Dioxide (SiO2) in sedimentary/volcanic host
mineral
Quartz Geode
Silicon Dioxide (SiO2) in a Secondary Sedimentary/Volcanic cavity
mineral
Metallic sulfide ore fragment, possibly pyrite-bearing rock
Indeterminate; likely pyrite (FeS₂) in a sulfide-rich matrix
mineral
Amber (or polished Chalcedony bead)
Fossilized Tree Resin / SiO2 (Silicon Dioxide if Chalcedony)
gemstone
Tumbled Chalcedony Pebble
Silicon Dioxide (SiO2)
mineral
Yellow jasper-like chalcedony
Microcrystalline quartz (SiO₂), likely iron-stained jasper or chert
mineral
Weathered iron-rich rock, possibly hematite-bearing breccia
Hematite (Fe₂O₃)-rich lithic fragment; exact host rock is uncertain from the image
mineral
Bumblebee Jasper
Carbonate-rich volcanic rock containing Sulfur and Arsenic (Realgar/Orpiment)
sedimentary
Agate
SiO2
mineral
Quartz (Chert/Chalcedony variety)
Silicon Dioxide (SiO2)
sedimentary
Red Jasper (Quartz)
Silicon Dioxide (SiO2) with Iron impurities
sedimentary
Polished red jasper (likely hematite-bearing jasper)
Jasper, microcrystalline quartz (SiO₂), colored chiefly by iron oxides such as hematite/goethite
mineral
Green Chalcedony (Green Agate)
Silicon Dioxide (SiO2)
mineral
Cinnabar on Matrix with Quartz
Mercury(II) sulfide (HgS) on Quartz (SiO2) and Basalt/Siltstone matrix
mineral
Chalcedony (Carnelian)
Silicon Dioxide (SiO2)
mineral
Blue Chalcedony (likely dyed Agate)
Silicon Dioxide (SiO₂)
mineral
Tumbled brecciated jasper
Silica-rich microcrystalline quartz/chalcedony (SiO₂), with iron-oxide and other mineral inclusions
mineral
Carnelian Agate
Chalcedony (SiO2)
mineral
Red Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Red Jasper (Jasper)
Silicon Dioxide (SiO2) with iron oxide inclusions
mineral
Carnelian
Carnelian (Silicon Dioxide, SiO2)
mineral
Brown Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Leopard Skin Jasper
Silicon Dioxide (SiO2) with impurities
sedimentary
Common Opal
Hydrated Silica (SiO2·nH2O)
mineral
Jasper
Silicon Dioxide (Microcrystalline Quartz)
sedimentary
Bumblebee Jasper
Anhydrous Calcium Carbonate with Sulfur and Arsenic (Orpiment/Realgar)
sedimentary
Chert (Common Opal/Jasper mix)
Silicon Dioxide (SiO2) with impurities
sedimentary
Geode
Quartz nodule / Chalcedony-lined cavity
sedimentary
Jasper
Silicon Dioxide (Microcrystalline Quartz, SiO2)
sedimentary
Jasper (or possibly Agate/Chalcedony) beads
SiO2 (Silicon Dioxide)
mineral
Jasper or Agate
Silicon dioxide (SiO2)
Mineral
Carnelian
Silicon Dioxide (Chalcedony variety), SiO2
mineral
Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Chalcedony (Agate/Chert)
Microcrystalline Quartz (SiO2)
mineral
Chalcedony (Agate)
Cryptocrystalline Quartz (SiO2)
mineral
Chalcedony (Agate/Carnelian)
Silicon Dioxide (SiO2)
mineral
Yellow Jasper
Silicon Dioxide (SiO2) with iron inclusions
sedimentary
Basalt Pebble
Extrusive igneous rock (Mafic)
igneous
Basalt River Pebble
Basalt
igneous
Yellow Chalcedony / Yellow Agate
Silicon Dioxide (SiO2)
mineral
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary