Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
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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Jasper (Red/Brown Variety)
Jasper (Microcrystalline Quartz, SiO2)
sedimentary
Banded Calcite (Mexican Onyx)
Banded Calcite (CaCO3)
sedimentary
Jasper with Quartz Veins
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Green Jasper
Jasper (variety of Microcrystalline Quartz, SiO2)
sedimentary
Dragon Blood Jasper
Epidote-rich Quartzite (SiO2 with Ca2(Al,Fe)3(SiO4)3(OH))
metamorphic
Picture Jasper
SiO2, Microcrystalline Quartz
mineral
Chalcedony Pebble
Cryptocrystalline Quartz (SiO2)
mineral
Chalcedony (Agate/Chert variety)
Silicon Dioxide (SiO2)
mineral
Yellow Chalcedony (Agate)
Silicon Dioxide (SiO2)
mineral
Polished orange agate/jasper cabochon
Microcrystalline quartz (chalcedony), SiO₂, with iron-oxide coloration; exact variety uncertain
mineral
Greenstone
Greenschist / Greenstone (contains epidote, chlorite, and actinolite)
metamorphic
Aventurine (likely Green Aventurine)
Quartz (SiO2) with included minerals (Fuchsite or Chlorite for green color)
Mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Red Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Chalcedony (specifically Agate or Common Opal variety)
Cryptocrystalline Silica (SiO2)
mineral
Granodiorite
Granodiorite (Intermediate to Felsic Intrusive Rock)
igneous
Quartz (Milky/Chalcedony variety)
Silicon Dioxide (SiO2)
mineral
Tumbled blue chalcedony (likely common blue quartz)
Microcrystalline quartz, SiO₂; chalcedony variety
mineral
Chalcedony (Agate/Carnelian pebbles)
Cryptocrystalline Quartz (SiO2)
mineral
Quartz Pebbles and Agates
Silicon Dioxide (SiO2)
mineral
Agate (specifically Carnelian or Honey Agate)
Silicon Dioxide (SiO2)
Mineral
Milky Quartz or Moonstone
Silicon Dioxide (SiO2) or Potassium Aluminum Silicate (KAlSi3O8)
mineral
Quartz (Chalcedony/Agate nodule)
Silicon dioxide (SiO2)
mineral
Polished yellow chalcedony (likely quartz pebble)
Chalcedony, microcrystalline quartz (SiO₂), possibly iron-stained jasper
mineral
Tumbled jasper
Microcrystalline quartz (SiO₂), commonly iron-rich jasper
mineral
Red Jasper (Chalcedony)
Silicon Dioxide (SiO2) with iron oxide inclusions
mineral
Tumbled amber-colored chalcedony or jasper
Microcrystalline quartz (SiO₂), likely iron-stained chalcedony/jasper
mineral
Chalcedony on Matrix (Botryoidal Agate)
Silicon Dioxide (SiO2)
mineral
Chalcedony (Agate / Moss Agate)
Silicon Dioxide (SiO2)
mineral
Carnelian
Carnelian (SiO2) - Chalcedony variety
mineral
Agate
Silicon dioxide (SiO2)
mineral
Jasper (specifically Chert or Orbicular Jasper)
Silicon Dioxide (SiO2)
sedimentary
Quartz (specifically a water-worn Quartzite or Chalcedony pebble)
Silicon Dioxide (SiO2)
mineral
Tumbled Red Jasper
Quartz (Microcrystalline variety of chalcedony, SiO2)
mineral
Blue chalcedony (likely common blue agate)
Microcrystalline quartz, SiO₂; chalcedony variety
mineral
Bumblebee Jasper
Fibrous Calcite with Arsenic and Sulfur Inclusions
gemstone
Orbicular Jasper (Ocean Jasper tendency)
Silicon Dioxide (SiO2) with impurities
sedimentary
Blue-dyed banded agate
Microcrystalline quartz (SiO₂), chalcedony variety
mineral
Moss Agate
Silicon Dioxide with inclusions (SiO2 + impurities)
mineral
Likely tumbled quartz/chalcedony
Quartz (SiO₂), possibly milky quartz or pale chalcedony
mineral
Jasper with Quartz Vein
Microcrystalline quartz (SiO2) and chalcedony with a quartz vein
sedimentary