Grey Jasper (Tumbled Quartz variant)
Jasper (Silicon Dioxide, SiO2)
sedimentary
Category
Mineral, Specifically A Variety Of Quartz
Browse mineral, specifically a variety of quartz specimens identified by the Rock Identifier community.
Limestone (specifically fossiliferous/skeletal limestone)
Calcium Carbonate (CaCO3)
sedimentary
Chert (specifically Gray/Blue-Gray Chert)
Chert (SiO2)
sedimentary
Quartzite (Orthoquartzite)
Quartzite (SiO2)
metamorphic
Jasper (Red Jasper with Quartz veins)
Jasper (Silicon Dioxide, SiO2)
sedimentary
Jasper, Agate, Quartz Mix (Polished Beads)
SiO₂ (Silicon Dioxide) for Quartz. Jasper and Agate are cryptocrystalline varieties of Quartz.
Mineral/Semiprecious Gemstone (variety of Quartz)
Chert (Jasper/Flint variety)
Microcrystalline quartz (SiO2)
sedimentary
Chert (White Chert / Flint)
Microcrystalline or Cryptocrystalline Silicon Dioxide (SiO2)
sedimentary
Chert (Pebble)
Chert (Microcrystalline Quartz, SiO2)
sedimentary
Jasper
Jasper (Silica/Quartz) - SiO2
sedimentary
Chert (Green Jasperiod)
Chert (Microcrystalline Quartz, SiO2)
sedimentary
Sandstone
Sandstone (various mineral compositions)
Sedimentary
Jasper and Quartz conglomerate (River Rock)
Silicon Dioxide (SiO2) - Chalcedony and Quartz variety
sedimentary
Chert (Jasper/Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Satin Spar (Gypsum)
Hydrous Calcium Sulfate (CaSO4·2H2O)
mineral
Amygdaloidal Basalt
Amygdaloidal Basalt (Mafic volcanic rock)
igneous
Quartzite
Quartzite (primarily SiO2)
metamorphic
Jasper (Red and Tan Jasper)
Microcrystalline Quartz (SiO2) with iron oxide inclusions
sedimentary
Chert (variant of Flint)
Chert (SiO2)
Sedimentary
Green Quartzite (Aventurine variety)
Silicon Dioxide (SiO2) with inclusions of Fuchsite
metamorphic
Black Pearl (Tahitian Type)
Aragonite / Conchiolin composite (CaCO3)
mineraloid
Chert (Yellow or Tan Chert)
Silicon Dioxide (SiO2)
sedimentary
Schist (Micaceous Schist)
Schist (comprising Muscovite/Biotite mica, Quartz, and Feldspar)
metamorphic
Chert (Brown variety / Common Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Sandstone (Quartzite-rich Cobble)
Clastic sedimentary rock (primarily SiO2)
sedimentary
Chert (and Chert Flake)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (Nodular)
Chert (Microcrystalline Quartz, SiO2)
sedimentary
Chert (Flint nodule)
Silicon dioxide (SiO2)
sedimentary
Amazonite
Potassium aluminum silicate (KAlSi3O8)
mineral
Rainbow Moonstone with Black Tourmaline
White Labradorite (Feldspar variety, (Na,Ca)(Al,Si)4O8) with Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
mineral
Amber
Succinite (specifically for Baltic amber); Approximate formula: C10H16O
Organic Gemstone (Mineraloid)
Spinosaurus Tooth Fossil
Spinosaurus aegyptiacus (Calcium Phosphate/Apatite)
sedimentary
Greenstone (Epidosite or Altered Basalt)
Epidosite (Ca2(Al, Fe)3(SiO4)3(OH))
metamorphic
Chert (Jasper/Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Quartz in Limonite-rich Matrix
Silicon Dioxide (SiO2) with Goethite/Limonite FeO(OH)·nH2O
Mineral in Sedimentary/Secondary host
Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Chert / Flint
Chert (varieties include Flint)
Sedimentary
Iron-stained Quartz
Silicon Dioxide (SiO2) with Limonite/Hematite inclusions
mineral
Ferruginous Sandstone (with possible trace fossils)
Arenite with Iron-Oxide Cement (SiO2 with Fe2O3)
sedimentary
Dragon Stone
Argillaceous Sedimentary Rock (Ohko Stone)
sedimentary
Jasper (Green Jasper/Heliotropic Chert)
Silicon Dioxide (SiO₂)
sedimentary
Blue Goldstone
Aventurine Glass (SiO2 with Co and metallic inclusions)
mineral (synthetic glass)