Chert (Jasper/Agate variety)
Microcrystalline quartz (SiO2)
Category
Browse mineral (variety of quartz) specimens identified by the Rock Identifier community.
Chert (Jasper/Agate variety)
Microcrystalline quartz (SiO2)
Gold-bearing Quartz
Lode Gold in Silicon Dioxide (SiO2)
Quartz (Iron-Stained)
Silicon Dioxide (SiO2)
Quartz River Cobble
Silicon Dioxide (SiO2)
Pink Botswana Agate
Silicon Dioxide (SiO₂), a cryptocrystalline variety of Quartz and Chalcedony
Jasper
Jasper (Silicon Dioxide, SiO2)
Chert (Field-collected variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Jasper
Silicon dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Chert
Chert (microcrystalline quartz, SiO2)
Chert (Brown variety)
Silicon Dioxide (SiO2)
Chert (Green variety)
Chert (Silicon Dioxide, SiO2)
Tiger's Eye (Golden and Blue Pietersite mix)
Pseudomorph of Quartz after Crocidolite (SiO2 with iron inclusions)
Green Apophyllite
Fluorapophyllite-(K), KCa4(Si8O20)(F,OH)·8H2O
Milky Quartz (with Chlorite/Mineral Inclusions)
Silicon Dioxide (SiO2)
Selenite (Satin Spar)
Gypsum (CaSO4·2H2O)
Larimar
Pectolite (a blue variety of Pectolite)
Red Quartzite (likely Purple/Red variety)
Quartzite (SiO2)
Epidote (Unakite variety)
Epidosite (Metasomatic rock containing Ca2(Al,Fe)3(SiO4)3(OH))
Emerald
Beryl (Be3Al2Si6O18), specifically the green variety colored by chromium or vanadium
Quartz (Iron-Stained)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Coarse-grained Quartz with Feldspar inclusions
Crystalline Quartz (SiO2) with Orthoclase/Plagioclase Feldspar inclusions
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Milky Quartz Vein with Matrix
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Satin Spar (Selenite)
Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O
Peach Moonstone
Orthoclase Feldspar (KAlSi3O8)
Blue Lace Agate
Silicon Dioxide (SiO₂)
Sunstone
Plagioclase Feldspar (specifically Oligoclase variety with hematite or goethite inclusions) Chemical Formula: (Ca,Na)(Al,Si)2Si2O8
Red Tiger's Eye
Silicified Crocidolite (Quartz pseudo-morph after Crocidolite), SiO2
Jasper Cross
Silicon Dioxide (SiO2) with iron oxide impurities
Pyrite
Iron Sulfide (FeS2)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Blue Lace Agate (Heat-treated/Crackle Quartz variety)
Silicon Dioxide (SiO2)
Aventurine (likely Green Aventurine)
Silicon Dioxide (SiO2) with included minerals (Fuchsite for green)
Crazy Lace Agate
Silicon Dioxide (SiO2) with iron and aluminum inclusions
Banded Chert
Microcrystalline Quartz (SiO2)
Greenschist (containing Epidote and Quartz)
Greenschist (Epidote-Chlorite-Actinolite Schist)
Chert (Jasper/Agate variety)
Microcrystalline Quartz (SiO2)
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
Chert (Jasper/Agate variety)
Microcrystalline quartz (SiO2)