Quartz (or Chalcedony) Specimen
Silicon Dioxide (SiO2)
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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Tumbled jasper (likely brecciated or orbicular jasper)
Microcrystalline quartz (chalcedony), SiO₂, with iron-oxide and other mineral inclusions
mineral
Polished pink banded agate
Microcrystalline quartz (chalcedony), SiO₂
mineral
Carnelian
Carnelian (Chalcedony / Quartz variety, SiO2)
mineral
Blue Chalcedony
Silicon Dioxide (SiO2)
mineral
Jasper Pendant
Silicon dioxide (SiO2) with impurities
Mineral/Sedimentary
Jasper with Quartz Vein
Silicon Dioxide (SiO2)
sedimentary
Yellow Agate
Silicon Dioxide (Chalcedony variety), SiO2
gemstone
White Jade / White Chalcedony
Nephrite Jade (Ca2(Mg,Fe)5Si8O22(OH)2) or Chalcedony (SiO2)
Mineral
Polished agate/jasper nodule
Microcrystalline quartz (chalcedony), SiO₂, with iron-oxide impurities
mineral
Peach Moonstone
Orthoclase (Potassium Aluminum Silicate, KAlSi3O8)
mineral
Quartz pebble (Agate / Chalcedony)
Silicon Dioxide (SiO2)
mineral
Tumbled jasper
Microcrystalline quartz (chalcedony), chiefly SiO₂, colored by iron oxides and other impurities
mineral
Chert (and Flint)
Silicon Dioxide (SiO2)
sedimentary
Rainbow Moonstone
White Labradorite (formula: (Na,Ca)(Al,Si)4O8)
mineral
Likely tumbled or cut quartz/chalcedony fragment
Silicon dioxide (SiO₂), probably microcrystalline quartz or quartz
mineral
Carnelian
SiO2 (Silicon Dioxide) - Translucent reddish-brown variety of Chalcedony
mineral
Jasper (specifically Fancy Jasper or Bloodstone variety)
Silicon Dioxide (SiO2) with impurities (Iron oxides/silicates)
sedimentary
Chalcedony Nodule (Commonly known as Agate or Chert)
Microcrystalline Quartz (SiO2)
mineral
Yellow Jasper
Silicon Dioxide with iron inclusions (SiO2)
mineral
Chalcedony
Silicon Dioxide (SiO2)
mineral
Yellow Chalcedony
Cryptocrystalline Quartz (SiO2)
mineral
Polished/tumbled jasper
Jasper, microcrystalline quartz (SiO₂) with iron-oxide and other mineral impurities
mineral
Ocean Jasper
Spherulitic Chalcedony (SiO2 with impurities)
mineral
Quartz (Agate/Chalcedony variety)
Silicon Dioxide (SiO2)
mineral
Quartz (Rock Crystal)
Quartz (SiO₂ - Silicon Dioxide)
Mineral
Blue Chalcedony
Silicon Dioxide (SiO2)
mineral
Polished brecciated jasper (likely septarian or iron-rich jasper)
Microcrystalline quartz (chalcedony), SiO₂, with iron oxides and possibly calcite or other rock fragments
sedimentary
Green Banded Agate
Agate (Variety of Chalcedony/Quartz), SiO2
mineral
Quartz (specifically Milky or Clear Quartz fragment)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Jasper
Quartz (SiO2) with impurities
sedimentary
Tumbled chalcedony (likely carnelian or brown agate)
Microcrystalline quartz, SiO₂; chalcedony with iron-oxide coloration
gemstone
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Polished/tumbled iron-rich jasper (likely brecciated jasper)
Jasper, microcrystalline quartz (SiO₂) colored chiefly by iron oxides/hydroxides
metamorphic
Tumbled jasper or chert
Microcrystalline quartz (SiO₂), possibly iron-bearing jasper
mineral
Carnelian
Carnelian (SiO2 with Iron Oxide impurities)
mineral
Bloodstone
Chalcedony quartz variety (SiO2) with inclusions
mineral
Blue Lace Agate
Chalcedony (cryptocrystalline variety of Quartz), SiO2
mineral
Banded Agate (Dyed Purple)
Agate (Variety of Chalcedony/Quartz), SiO2
mineral
Agate (Polished Cabochon Slice)
Silicon Dioxide (SiO2)
mineral
Polished brecciated jasper
Jasper (microcrystalline quartz, SiO₂), likely iron-oxide-rich breccia
mineral