Picture Jasper
Silicon Dioxide (SiO2) with iron oxide and mineral impurities
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.
Jasper with Hematite inclusions
Silicon Dioxide (SiO2) with Ferric Oxide (Fe2O3)
sedimentary
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Tree Agate
Silicon Dioxide with Chlorite inclusions (SiO2)
Mineral (Variety of Chalcedony)
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Petrified Wood
Silicified Wood (SiO2)
metamorphic
Tiffany Stone
Bertrandite (Be4Si2O7(OH)2) mixed with Fluorite (CaF2), Opal, and Chalcedony
mineral
Gastly (Trick or Trade Halloween Series)
Cellulose-carbonaceous composite (Lignocellulose laminated with pigmentary polymers)
Mineral (Synthetic - Paper and Ink Polymorph)
Chalcedony (specifically Common Opal or Agate variant)
Silicon Dioxide (SiO2)
mineral
Quartz Crystal
Silicon Dioxide (SiO2)
mineral
Puddingstone
Conglomerate (specifically a type of jasper conglomerate or quartz conglomerate)
Sedimentary
Green Aventurine and Clear Quartz
Aventurine (variety of Quartz - SiO2) and Quartz (SiO2)
Mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Petrified Wood
Silicified Wood (SiO2 as Quartz/Chert/Chalcedony)
sedimentary
Chert (or Chalcedony)
Chert (Microcrystalline Quartz, SiO2)
sedimentary
Milky Quartz (Common Quartz)
Quartz (Silicon Dioxide, SiO2)
mineral
Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Chert (specifically Jasper/Flint pebble)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Basalt with Mineral Vein (Cobble)
Basalt (with likely Quartz/Calcite vein)
Igneous
Jasper
Silicon dioxide (SiO2) with impurities
sedimentary
Ferruginous Sandstone
Clastic sedimentary rock (SiO2 with Fe2O3/FeO(OH) cement)
sedimentary
Agate Slices and Clear Quartz Points
Agate (SiO2 Chalcedony) and Clear Quartz (SiO2 Crystalline)
mineral
Mookaite Jasper
Siliceous (chert) sedimentary rock, a form of Jasper
Sedimentary
Amethyst
Quartz variety; chemical formula: SiO₂ (silicon dioxide) with Fe³⁺ impurities
Mineral
Snakeskin Agate
Agate (Cryptocrystalline Quartz, SiO2)
mineral
Chert (specifically Blue Chert or Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (specifically Gray/Blue Chert)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Yellow Jasper (Chert)
Silicon Dioxide (SiO2) with iron inclusions
sedimentary
Quartz
Quartz (Silicon Dioxide - SiO2)
Mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Ferruginous Quartz
Silicon Dioxide (SiO2) with Hematite/Limonite impurities
mineral
Green Aventurine
Silicon dioxide (SiO2) with fuchsite inclusions
mineral
Yellow Banded Agate
Silicon Dioxide (SiO₂)
mineral
Quartz (specifically Citrine or Iron-stained Quartz)
Silicon Dioxide (SiO2)
mineral
Petrified Wood
Silicified Wood (SiO2 - Quartz/Chalcedony replacement)
Mineral / Fossil
Aventurine
Quartzite with inclusions (SiO2 containing Fuchsite chrome mica)
metamorphic
Petrified Wood
Silicified wood (Quartz/Chalcedony/Opal replacing organic matter)
sedimentary
Quartz (likely Jasper or Chert variety)
Quartz (SiO₂)
Mineral
Specular Hematite (Specularite)
Hematite (Iron(III) oxide) - Fe2O3
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Orange Quartz (Citrine Quartz variety)
Silicon Dioxide (SiO2)
mineral