Chalcedony (Quartz Var.)
Silicon Dioxide (SiO2)
mineral
Category
Mineral (Specifically A Variety Of Chalcedony, Which Is A Cryptocrystalline Quartz)
Browse mineral (specifically a variety of chalcedony, which is a cryptocrystalline quartz) specimens identified by the Rock Identifier community.
Banded Onyx (Calcite Marble)
Calcite (CaCO3) - Trap-rock or Cave Onyx
sedimentary
Druzy Agate (specifically Black Druzy Agate)
Silicon Dioxide (SiO2)
mineral
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Jasper (Green Jasper / Bloodstone variant base)
Silicon Dioxide (SiO2) with impurities of chlorite and iron oxides
sedimentary
Blue Chalcedony
Silicon Dioxide (SiO2)
mineral
Fancy Jasper
Chalcedony (cryptocrystalline quartz) with inclusions
Mineral
Honey Calcite (Orange Onyx)
Calcium Carbonate (CaCO3)
mineral
Citrine
Quartz (SiO2) - specifically, a variety of macrocrystalline quartz
mineral
Agatized Chert / Chalcedony
Silicon Dioxide (SiO2)
sedimentary
Yellow Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Agate (specifically Botswana or Lake Superior style chalcedony)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Red Jasper
Jasper (a variety of Chalcedony, SiO₂ with iron oxide inclusions)
Mineral
Agate (Polished Nodule)
Agate (Silicon Dioxide, SiO2)
mineral
Chalcedony
Silicon dioxide (SiO2) - Microcrystalline quartz
mineral
Rose Quartz
Quartz (SiO₂), specifically a variety of Quartz
Mineral
Geode with Quartz and possibly Jasper/Hematite
Quartz (SiO2) and Chalcedony (cryptocrystalline SiO2), possibly stained by iron oxides
Mineral/Sedimentary Geode
Blue Chalcedony
Chalcedony (cryptocrystalline Silicon Dioxide, SiO2)
mineral
Chalcedony (Agate/Chert)
Microcrystalline Quartz (SiO2)
sedimentary
Quartz (chalcedony variety) or Limestone with Quartz Veins
SiO2 (for Quartz/Chalcedony); CaCO3 (for Limestone)
Mineral or Sedimentary Rock (with mineral inclusions)
Blue Chalcedony
Silicon Dioxide (SiO2)
mineral
Petrified Wood
Silicified Wood (SiO2)
metamorphic
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Carnelian (a variety of Chalcedony)
Silicon Dioxide (SiO2) with iron oxide impurities
mineral
Blue Chalcedony
Silicon Dioxide (SiO2)
mineral
Yellow Jasper
Silicon Dioxide (SiO2) - variety Jasper
sedimentary
Agate (or Chalcedony)
SiO2 (Silicon Dioxide) - a cryptocrystalline variety of quartz
Mineral
Rose Quartz
Quartz (SiO₂), specifically a variety of Quartz
Mineral
Red Jasper (possibly)
Jasper (a variety of Chalcedony, SiO2)
Mineral
Blue Chalcedony
Silicon Dioxide (SiO2)
mineral
Chalcedony (or a variety of Chalcedony, likely Agate or Jasper)
Chalcedony (SiO₂)
Mineral (or mineraloid if microcrystalline)
White Jade / White Chalcedony
Nephrite Jade (Ca2(Mg,Fe)5Si8O22(OH)2) or Chalcedony (SiO2)
Mineral
Jasper (specifically Owyhee or Picture Jasper variety)
Jasper (Silicon Dioxide, SiO2)
sedimentary
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Carnelian
Carnelian (SiO2)
mineral
Chalcedony
Cryptocrystalline Quartz (SiO2)
Mineral
Blue Chalcedony
Silicon Dioxide (SiO2)
mineral
Fancy Jasper
Silicon dioxide (SiO2)
sedimentary
Banded Jasper (Chert)
Silicon Dioxide (SiO2) - variety of Chalcedony
Sedimentary Rock
Jasper (Banded Argillite/Chert mix)
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Agate (Grey Agate Slice)
Microcrystalline Quartz (SiO2)
mineral