Milky Quartz
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.
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Chert (specifically Yellow/Honey Jasper variety)
Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (variations include Chalcedony and Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Agate
Silicon Dioxide (SiO2)
mineral
Quartz (Milky/Gray variety)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
mineral
Pink Granite
Phaneritic Felsic Igneous Rock
igneous
Ferruginous Quartzite (Chert)
Quartzite with Iron inclusions (SiO2 + Fe2O3)
metamorphic
Chert
Chert (variant of microcrystalline quartz)
Sedimentary
Tiger's Eye (commonly referred to as Blue/Gold Tiger's Eye)
Tiger's Eye is a variety of Chalcedony (cryptocrystalline quartz), SiO2, exhibiting chatoyancy. The blue variety is often called Hawk's Eye.
Metamorphic Rock (formed from a fibrous crocidolite asbestos)
Rose Quartz
SiO2 (Silicon Dioxide)
mineral
Green Quartzite
Quartzite (primarily SiO2 with trace impurities)
metamorphic
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Red Jasper (possibly Carnelian)
Silicon Dioxide with Iron Oxide inclusions (SiO2 + Fe2O3)
sedimentary
Chert (specifically Jasper/Flint)
Chert (SiO2)
sedimentary
Emerald
Beryl (Be3Al2Si6O18), specifically the green variety colored by chromium or vanadium
Mineral (Gemstone variety of Beryl)
Clear Quartz (beads in a bracelet)
Quartz (SiO2)
Mineral
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Granite
Phaneritic Plutonic Felsic Rock (primarily Quartz (SiO2), Alkali Feldspar, and Plagioclase Feldspar)
igneous
Chert (Nodule)
SiO2 (Microcrystalline Quartz)
sedimentary
Carnelian
Carnelian (Silicon Dioxide - SiO2)
mineral
Chert
Microcrystalline Quartz (SiO2)
sedimentary
Gneiss
Gneiss (a rock type, not a specific mineral with a formula)
Metamorphic Rock
Chert (Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Aventurine
Aventurine Quartz (SiO2 with inclusions)
Mineral
Chert (and Flint)
Chert (SiO2)
sedimentary
Chert (with Limonite staining)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Jasper with Quartz Vein
Silicon Dioxide (SiO2) with impurities
sedimentary
Quartzite (specifically a river-worn pebble)
Quartzite (primarily SiO2)
metamorphic
Peach Moonstone (Orange/Peach Feldspar)
Potassium aluminum silicate (KAlSi3O8)
mineral
Chert (White Chert)
Silicon Dioxide (SiO2)
sedimentary
Chert (Yellow variety / Jasper)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Quartzite with Gneissic Banding
Quartzite (primarily SiO2) with mafic mineral inclusions
metamorphic
Chert (often called Flint)
Microcrystalline to cryptocrystalline quartz (SiO2)
sedimentary
Bumble Bee Jasper
Calcite-bearing Volcanic Tuff (not a true Jasper)
sedimentary
Chert (specifically Flint or Jasper variant)
Microcrystalline or Cryptocrystalline Silicon Dioxide (SiO2)
sedimentary