Botryoidal Chalcedony
Chalcedony (SiO2)
Mineral
Category
Mineral; Variety Of Quartz
Browse mineral; variety of quartz specimens identified by the Rock Identifier community.
Carnelian
Carnelian (SiO2 with Iron oxide impurities)
Mineral (Chalcedony variety)
Chert (Nodule)
Chert (primarily Microcrystalline Quartz - SiO2)
sedimentary
Jasper (Yellow/Brown variety)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Jasper Pebble
Tumbled Jasper (Microcrystalline Quartz, SiO2)
sedimentary
Chert (White-Tan variety)
Silicon dioxide (SiO2) / Microcrystalline Quartz
sedimentary
Moonstone
Orthoclase Feldspar (specifically showing adularescence)
Mineral
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxide inclusions)
metamorphic
Cinnabar in Quartz
Silicon Dioxide (Quartz, SiO2) with Mercury Sulfide inclusions (Cinnabar, HgS)
mineral
Quartz with Iron Staining
Silicon Dioxide (SiO2)
mineral
Chert (containing Flint nodules)
Microcrystalline or cryptocrystalline Quartz (SiO2)
sedimentary
Pink Quartzite (Water-worn)
Quartzite (SiO2)
metamorphic
Chert (Nodule)
Microcrystalline quartz (SiO2)
sedimentary
White Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Nephrite Jade
Ca2(Mg, Fe)5Si8O22(OH)2
metamorphic
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) within metamorphic/igneous matrix
igneous/metamorphic
Blue Chalcedony
Silicon Dioxide (SiO2)
mineral
Chert (specifically Yellow/Honey Jasper variety)
Cryptocrystalline Quartz (SiO2)
sedimentary
Quartz (Milky or Common Quartz)
Silicon Dioxide (SiO2)
mineral
Yellow Quartz (Citrine appearance)
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz with Iron Staining
Silicon Dioxide (SiO2)
mineral
Yellow Jasper
Jasper (Silica-rich Microcrystalline Quartz, SiO2 with Iron impurities)
sedimentary
Pyrite
Iron Pyrite (FeS2)
Mineral
Quartzite
Quartzite (primarily SiO2)
metamorphic
Ferruginous Quartzite (Red Chert/Jasper-like)
Metamorphosed Quartzite with Hematite inclusions (SiO2 + Fe2O3)
metamorphic
Titanium Aura Quartz (Aura Quartz)
Titanium-coated Silicon Dioxide (SiO2)
mineral
Gowganda Tillite (Puddingstone)
Glacial Diamictite (Gowganda Formation)
sedimentary
Granite
Phaneritic Igneous Rock (composed of Quartz, Feldspar, and Mica)
igneous
Quartzite
Quartzite (primarily SiO2)
metamorphic
Milky Quartz with Iron Inclusions
Quartz (Silicon Dioxide, SiO2)
mineral
Chert (varieties include Flint and Jasper)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Jasper with Quartz Veining
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Chert (Flint variety)
Chert (SiO2)
sedimentary
Quartz with Mica (Gneissic or Pegmatitic origin)
Silicon Dioxide (SiO2) with Phyllosilicates (KAl2(AlSi3O10)(F,OH)2)
metamorphic
Porphyry (Flower Stone)
Porphyry (Andesite or Basalt matrix)
igneous
Chert (Banded Variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Red Jasper (with Quartz veining)
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
sedimentary
Jasper Conglomerate (Puddingstone)
Siliceous Conglomerate (Quartz and Jasper clasts in a fine-grained matrix)
sedimentary
Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
River Rock (Greywacke/Sandstone)
Lithic Wacke
sedimentary