Yellow Jasper
Chalcedony (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.
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Lake Superior Agate
SiO2 (Quartz variety chalcedony)
gemstone
Blue Lace Agate
Chalcedony (Silicon Dioxide, SiO2)
mineral
Chalcedony
Chalcedony (SiO2)
mineral
Brecciated jasper/chert
Microcrystalline quartz (SiO₂), with iron-oxide and clay inclusions
sedimentary
Tumbled orbicular jasper (probable)
Jasper, microcrystalline quartz (SiO₂), with iron- and clay-rich inclusions
mineral
Polished orbicular jasper (likely ocean jasper)
Jasper, a microcrystalline variety of quartz (SiO₂), with iron-oxide and other mineral inclusions
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Banded Agate (specifically Botswana Agate or Water-line Agate)
Chalcedony (cryptocrystalline variety of Quartz), SiO2
mineral
Jasper
Silicon dioxide (SiO2)
sedimentary
Banded Agate (specifically Carnelian Agate slice)
Chalcedony (cryptocrystalline variety of Quartz), SiO2
mineral
Carnelian
Chalcedony (cryptocrystalline quartz), SiO2 (Silicon Dioxide)
mineral
Banded Agate
Chalcedony / Silicon Dioxide (SiO2)
mineral
Crazy Lace Agate
Silicon Dioxide (SiO2) - Variety of Chalcedony
mineral
Black Onyx
Silicon Dioxide (SiO2)
mineral
Chrysoprase
Silicon dioxide with nickel impurities (SiO2 + Ni)
mineral
Chalcedony
Chalcedony (a microcrystalline variety of Quartz, SiO2)
Mineral
Druzy Agate (specifically Black Druzy Agate)
Silicon Dioxide (SiO2)
mineral
Ocean Jasper
Orbicular Jasper (Silicon Dioxide, SiO2)
mineral
Flint / Chert Nodules in Limestone
Cryptocrystalline Quartz (SiO2) within Carbonate Rock
sedimentary
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Red Jasper
Red Jasper (variety of Chalcedony, SiO₂)
Mineral
Agatized Chert / Chalcedony
Silicon Dioxide (SiO2)
sedimentary
Crazy Lace Agate
Chalcedony (SiO2)
mineral
Red Jasper
Microcrystalline Quartz (SiO2) with iron oxide inclusions
sedimentary
Agate (or Banded Agate)
Agate (a variety of Chalcedony, which is a cryptocrystalline form of Quartz); Chemical Formula: SiO₂ (Silicon Dioxide)
Mineral, specifically a Cryptocrystalline Quartz variety
Apricot Agate
Silicon Dioxide (SiO2) - Chalcedony variety
mineral
Agate
Agate (Cryptocrystalline Variety of Quartz, SiO2)
Mineral
Jasper
Silicon dioxide (SiO2)
sedimentary
Bloodstone
Heliotrope
Mineral
Jasper (Red/Brown Variety)
Jasper (Silicon Dioxide, SiO2 plus Iron Oxide impurities)
sedimentary
Honey-colored chalcedony (rough agate/chert)
Microcrystalline quartz, SiO₂; likely chalcedony with iron-oxide staining
mineral
Jasper
Jasper (Silicon Dioxide, SiO2 with iron inclusions)
sedimentary
Geode
Quartz nodule / Chalcedony-lined cavity
sedimentary
Polished banded jasper pebble
Jasper, a microcrystalline quartz variety (SiO₂), with iron-oxide and clay/mineral impurities
mineral
Jasper and Chalcedony Composite
Silicon Dioxide (SiO2) microcrystalline quartz
sedimentary
Banded Jasper (Chert)
Silicon Dioxide (SiO2) - variety of Chalcedony
Sedimentary Rock
Fancy Jasper
Chalcedony (cryptocrystalline quartz) with inclusions
Mineral
Tumbled carnelian (reddish chalcedony)
Carnelian, a cryptocrystalline variety of quartz (SiO₂)
gemstone
Chalcedony with Druzy Quartz
Silicon Dioxide (SiO2)
mineral
Polished Jasper (Mushroom Carving)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Blue Chalcedony
Cryptocrystalline Quartz (SiO2)
mineral