Chert Pebble/Nodule
Chert (a microcrystalline or cryptocrystalline sedimentary form of quartz, SiO2)
Category
Browse mineral, specifically a variety of quartz specimens identified by the Rock Identifier community.
Chert Pebble/Nodule
Chert (a microcrystalline or cryptocrystalline sedimentary form of quartz, SiO2)
Aventurine
Aventurine (Silicon Dioxide with Fuchsite inclusions) - SiO2
Green Aventurine
Quartz with Fuchsite inclusions (SiO2)
Green Aventurine
Quartz (SiO2) with fuchsite inclusions
Ocean Jasper
Spherulitic Chalcedony (SiO2)
Orbicular Granite (specifically Mustard or Yellow Tonalite/Granodiorite)
Orbicular Quartz Diorite / Tonalite
Emerald in Matrix
Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities
Amazonite
Microcline (KAlSi3O8)
Quartz (Milky Quartz)
Quartz (SiO2 - Silicon Dioxide)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Citrine
SiO2 (Silicon Dioxide)
Tree Agate (or Moss Agate), faceted into a crystal tower
Dendritic Agate (Silicon Dioxide, SiO2)
Ferruginous Quartz
Silicon Dioxide (SiO2) with Hematite/Limonite impurities
Yellow Jasper
Silicon dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Flint
Sedimentary cryptocrystalline quartz (SiO2)
Orange Calcite
Calcium Carbonate (CaCO3)
Jasper (specifically Bloodstone or Heliotrope variety)
Silicon Dioxide (SiO2) with iron oxide inclusions
Pink Granite
Granite (Phaneritic Quartz-Feldspar rock)
White Quartz Star
Silicon Dioxide (SiO2)
Orca Agate
Chalcedony (Microcrystalline Quartz, SiO2)
Amethyst
SiO2 (Silicon Dioxide with iron impurities)
Milky Quartz (Common Quartz)
Quartz (Silicon Dioxide, SiO2)
Clear Quartz Cluster
Silicon Dioxide (SiO2)
Blue Calcite
Calcium Carbonate (CaCO3)
Quartz (Druzy Quartz)
Silicon Dioxide (SiO2)
Gypsum (Selenite crystals in Halite/Clay matrix)
Calcium Sulfate Dihydrate (CaSO4·2H2O)
Agate
SiO2
Kyanite in Quartz
Kyanite (Al2SiO5) with Quartz (SiO2)
Sandstone Concretion
Moqui Marble / Ironstone Concretion (Iron oxide-cemented sandstone)